sp515 vs sp546

SP509 plug is a 1 piece that fits 08+ 5.4 redesigned heads. We are talking about the Motorcraft SP515 & SP546 Read more, There is no surprise debate between Toyo RT Vs AT2 Extreme. We are talking about the Motorcraft SP515 & SP546 Read more Toyo RT Vs AT2 Extreme - What should be Your Choice That being said, I would strongly advise asking your chum to provide you with this internal bulletin from Ford that supposedly recommends installing the oversized SP-515 plugs, before taking a severe risk of causing serious thread damage to your cylinder heads. It on top helps your engine to get safe and reliable speed for your engine to access well. I see some reference to this new number but no real info. Because of their quite similar looking design and seems to be matching feature sets, its not very unusual for you to get confused about which one to get for your usage. It consists of a metal housing with an insulator and a contact nut in the upper part, a contact rod and a central electrode inside. Spark Plug Iridium; Gap: .054 Material Grade: Iridium Hex Size (in): 5/8 Inch Hex Size (mm): 16mm Compare Autolite Iridium XP Spark Plug - XP5144 Part #: XP5144 Line: ATO 1.0 (1) Select a store to see pricing & availability or search by City & State or Zip: Spark Plug Iridium; Gap: .043 Material Grade: Iridium Hex Size (in): 5/8 Inch Maybe that's the replacement. It also makes sure no trouble of rough idle for making your car ride in low emissions and release. 1999-2023 RockAuto, LLC - Madison, Wisconsin USA. Spark Plug SP-515 PZH14F Motorcraft. Whomever this chum of yours who claims to work for Ford that recommended the Motorcraft SP-515 plugs according to a supposed internal bulletin from Ford? Please enter your vehicles Year, Make, & Model to confirm fitment. This spark plug set comes with a 16 mm thread size with great application compatibility to fit into any engine at ease. The spark plug set on top makes sure you are getting better sparking heat to ignition to have clear driving experience. Thanks. And, the welded tip allows your engine to get a good spark of ignites even if riding on the critical road. Powerful diesel engines and 6.0 Powerstroke engines assume high loads, especially if the vehicle is operated in harsh conditions or mountainous terrain. We are talking about the Motorcraft SP515 & SP546 variants. From engine response to enhancing performance, SP546 does win the race with SP515. Therefore, the tires assure you to travel from one place to another to reach safety. Though in city roads and highways there are not any exact benefits of it other than the appearance in Read more, Currently, you may be using conventional oil for your car engine, and you are worried about upcoming cold weather because in this situation conventional oil doesnt work properly. Since I am warning lots of people of out of the box failures on sp515's . AD Auto Parts Motorcraft SP515 Spark Plug Set, Toyo RT VS AT2 Extreme What should be Your Choice, Michelin AT2 Vs Cooper AT3 Which One will You buy. Best 2-in-1 Laptops For Gaming - Entertainment News Celebrity News . Said it also came at same time as per unit price increase. Its best to stick to the regulations established by the manufacturer. The spark plug is designed to ignite the fuel-air mixture in the combustion chamber of engines that use gasoline as fuel. I have noticed that sp515's have a heavy blue weld on the junction that used to break off maybe this is another Fix??? Disclaimer: Links on this page pointing Related:motorcraft sp546 Include description Category Selected categoryAll Automotive Parts & Accessories Brand Motorcraft(4) Items(4) partscollect(2) Items(2) Not Specified(4) Items(4) Voltage 6 - 10 V(1) Items(1) 11 - 15 V(4) Items(4) Not Specified(5) Items(5) Type Glow Plug(5) Items(5) Not Specified(1) Items(1) Brand Type Show details This item: Motorcraft SP-515 Spark Plug PZH14F - Superseded To SP546 $12.69 Motorcraft DG511 Ignition Coil $31.54 Each engine (car) has its own values for these parameters. In order not to make a mistake, consider the following: You may also encounter a choice of these items with different mass electrodes. The main difference is their service life. All variants are good, if it was chosen correctly. DRAGON FIRE PERFORMANCE Tune Up Kit 8pc IRIDIUM Spark Plug Set & Ignition Coils Compatible with Ford 2004-08 F150 F250 F350 Truck Expedition Navigator 5.4L 4.6L V8 SP515 SP546 DG511 FD508 Fit Kit-1522. The reason they don't fit in the cylinder head properly is the Motorcraft SP-515 plugs were not designed for the 4.6L 3v Mustang. Installation begins by raising the vehicle and removing the tire. And to mention their effort for enhancing fuel efficiency. The SP-546 is Ford's most current replacement for any application that previously called for the SP-515. Autokingx.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. It ignites a mixture of air and fuel that comes from a spark. Main Question: I just purchased a 94 F150 with 214k on it. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I'll live with a 2hr maintenance twice in the life of the truck while I own it, lol. Skip to the end of the images gallery . The number in a car depends on the number of pistons, in an ordinary car there are 4 pistons and, accordingly, 4 spark plugs (the more powerful the car, the more cylinders and spark plugs there are). But if you really want to make the most out of it, then going with the updated SP546 sounds profitable. This spark plug set also allows good heated engine performance. So, you need to be careful enough with picking the right tire for your car. Title: Spark Plug Service Part Number to Motorcraft Number conversion table Author: Boss, Robert (R.T.) Created Date: Check "Remember Me" to access your shopping cart on this computer even if you are not signed in. Replaces PZT14F PZT1F PZT2F PZT2FF4 SP421 SP462 SP507 SP515. [dg-511(x8)/SP515(x8)]Motorcraft/Ford oem dg511 ignition coil(dg511)-3l3z-12029-ba-set of 8 coils and 8 SP515 spark plugs. This spark plug set also ensures no snag of the temperature effect. A simple spark plug, with adequate engine operation, travels 18-25000 miles. If so, can you answer any of question in post 1? No parts for vehicles in selected markets. Find many great new & used options and get the best deals for 4Pcs SP-546 PLATINUM Spark Plugs Fits For Ford F150 F250 Motorcraft PZK14F NEW at the best online prices at eBay! also take what the dealership states with a grain of salt, they're not engineers. They're designed for the larger 5.4L 3 valve cylinder head F-150 trucks. Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum. Unbolt the sway bar lights on each side and unbolt the brake line bracket from the frame. But theres a nuance to it. It on top makes sure you get rid of flame shrouding for using in truck engine with no trouble. Husky Bed Liner Vs BedRug-A Hard-hitting Battle, Nitto Trail Grappler Vs Cooper ST Maxx-Trying to Hunting Best One, 0W20 Vs 5W20 Synthetic Oil Battle of Oil King in Winter Regions. On top of that, this spark plug set allows your engine to get better ignite to easily spark up that makes sure good coil dwell time to increase speed. Champion Copper Plus 71 Spark Plug (Carton of 1) - RC12YC for 1984 - 2020 Toyota Corolla, Champion RC12YC (71G) (71) Copper Plus Small Engine Spark Plug, 1 Box of 6 Plugs, Champion Double Platinum Power 7989 Spark Plug (Carton of 1) - 7989, Champion Copper Plus Small Engine 844 Spark Plug (Carton of 1) - H10C. It also stays fitted that can resist impact. It also allows your truck to easily fit with no trouble of loose fit. Well IMHO this neither adds up nor makes any logical sense whatsoever. [SP-546(PZK14F)]Motorcraft Spark plugs(replaces SP515). Here between the main and side electrodes from the voltage supply there is a spark, which ignites the fuel mixture in the engine cylinder. Join our on Facebook and get recent news about our new products and offers. We are talking about the Motorcraft SP515 & SP546 Read more Toyo RT Vs AT2 Extreme - What should be Your Choice It also allows fine horsepower to flow when riding on the street. Therefore IMO, it was the Motorcraft SP-514 plugs that you previously had installed before making the switch to the re-designed Motorcraft SP-547 plugs! amzn_assoc_region = "US"; Oxygen supply is the key point in the ignition process inside the engine chambers. Advertising - amzn_assoc_placement = "adunit"; [SP-546X(PZK14F)]Motorcraft Spark plugs(replaces SP515). Sp546X vs sp546 spark plugs ( 5.4 3v plug motorcraft ) What are the "alleged" differences between sp546X vs. plain sp546, why the new model? Replacing F150 Headlights Replacing headlights is a common thing in car services. Acer Spin 5 SP515-51GN-83YY Review - Top World Reviews. Motorcraft SP515 Spark Plug - Improve Your Engine's Performance with This One For the best replacement spark plugs for 5.4 triton, the Motorcraft spark plugs are a great option. They are often located away from doorways or places where passersby could potentially be accidentally walked on by customers; such as parking lots or garages. Cookie Policy - Aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum. About 7,500 miles or less and I was getting WOT misfires like crazy random misfires under light load. MOTORCRAFTSP546Finewire PlatinumInfo Category: Spark Plug Choose ($9.49/Each){4}+ $37.96 ^(Only 1 Remaining) ($10.70/Each){1}+ $10.70 ^ ($9.49/Each)x4$37.96 ($9.49/Each)x4$37.96 (Only 1 Remaining) ($10.70/Each)x1$10.70 Intentionally blank Intentionally blank Choose ^ Could ship from same location as parts in cart This spark plug set also ensures better speed up. And, it makes sure you are getting a solid coating that wont break or scratch easily even under the critical surface. https://www.summitracing.com/parts/mof-sp515, Do Not Sell or Share My Personal Information. Copyright 2023. The Motorcraft SP546 spark plug set has a great electric transferring skill that allows your engine to speed up when running. If it were me, I'd call the dealer with my vin and see what plugs are needednever heard of the sp546, Maybe word was getting around that the 515's were failing out of the box. This spark plug set also ensures higher gas mileage on the roadside. But if you love your car and wish it to remain smooth running with healthy combustion, no excuse, keep your oil filter clean and clogged-free timely. Designed with high quality materials to meet or exceed OEM Specifications. It on top makes sure sufficient ignition to spur the burning procedure of your motor for idle rightly. Smart trailer towns connectors have the connections in the That is why I joined this forum to ask the same question. Compatibility. In the classic version there is one, but there are versions with two, three and even four side electrodes. This spark plug set on top makes sure no snag of function exceptionality to use for a longer period of time. Laptop and tablet deals: iPads, MacBooks, Razer laptops, Acer. Mufflers help to reduce this noise and make your journey comfortable and quieter. Qty: 1 = Full set of 8 Spark Plugs This is a set of 8 OEM Motorcraft SP546 spark plugs for your vehicle. $9.49. This spark plug set on top makes sure better resistance to drive well. Usually, the cheapest ones are made of nickel alloy. But the cost of such elements will be much higher. amzn_assoc_linkid = "49f88e9c287fd9c7b26a409ddfd00a2e"; amzn_assoc_tracking_id = "autokingsx-20"; If you want to restore the original performance of your vehicle's ignition system, this product is what you need. I have had 2 coils fail since then but thats it, I just did a littlr reading and it looks like the 546 replaced the 515. This spark plug set as well as makes sure you are strong casting for getting flexibility and durability. Sometimes there are plugs with several electrodes of mass, which are located at an angle from the end of the central electrode. For a better experience, please enable JavaScript in your browser before proceeding. An example of data being processed may be a unique identifier stored in a cookie. Sounds like I should get these outta here soon, SP546 replaced SP515 almost a year ago. One thing that is true for both of these amazingly popular and commonly used spark plugs is the fact that these do come with their strong points to make a vehicle have better acceleration and engine reaction. Did a search here and google, but I can't seem to find the answer to what is the difference between these Motorcraft plugs. JavaScript seems to be disabled in your browser. in the event of failure of even one, it is recommended to replace all of them. Last edited by Big Screen D; 08-25-2017 at 10:39 AM. The cross references are for general reference only, please check for correct specifications and measurements for your application. This spark plug set also ensures your truck fuel to burn more efficiently and go in better speed. Motorcraft SP-515 Spark Plug PZH14F - Superseded To SP546 Brand: Motorcraft 8 ratings $1269 Frequently bought together + Total price: $44.23 Add both to Cart Some of these items ship sooner than the others. The SP-515 have been superseded by the SP-546 by Ford. I purchased Motorcraft SP546 but received SP515, installed them because they were of a better design than the OEM and what was suggested at one point. Please verify your year, make and model or contact us before pruchasing. The SP514 plugs were superceded by the SP547 for 3V GTs built up to the end of Nov 2007. SP 515 one is not a stock item and is used on roush charged motors. And, we dont stop there. 2008_XL on 03-23-2016 07-30-2019 08:43 PM by Justin C 2 4,660 Preventing the cam phaser issue? Its a pretty common thing. What did you do to your truck today? In addition, they should be replaced with a set, i.e. Terms of Service - Just purchased for 2005 5.4 3v. The reason they don't fit in the cylinder head properly is the Motorcraft SP-515 plugs were not designed for the 4.6L 3v Mustang. Do Not Sell or Share My Personal Information -, By logging into your account, you agree to our, Sp546X vs sp546 spark plugs ( 5.4 3v plug motorcraft ). Ultimately, you should be making the choice, so do it! Privacy Statement - A right tire can indirectly enhance Read more, A muffler is an essential part of your vehicles engine. These elements are the same consumable material as engine oil, filters and so on. It on top has a thin layer that allows you to get easier feed. Halloween Drive-thru Near Me, Hotpoint Oven Turnspit How To Use, Teriyaki Fish Recipe Tilapia, Romans 12:1-8 Sermon Illustrations, Sp515 Vs Sp546, In Asymmetric Key Cryptography, The Public Key Is Available With, $70,000 A Year Pension, Dynamite Sauce Recipe Sushi, Women's Weekly Date Slice, Rosemary Gravy For Chicken, Comic Set In Metropolis Crossword Clue, And, it makes sure your car is easily getting better acceleration and braking reaction to have the combustion process in your engine. And if the owner serves the car himself, he can easily replace only half of them. The Motorcraft plugs for the 2005- early 2008 4.6L 3 valve Mustangs are Motorcraft SP-462 superseded by SP-514 and SP-547. Theres also a side electrode. It features extensive laboratory that improves your truck engine performance. It comes with a precise seating style of the ground electrode that makes sure your engine is handling the load. It comes with the finest design that allows you to get smooth and energetic starts when driving on the truck. DISCLAIMER: THERE ARE AFFILIATE LINKS IN THIS POST. General discussion on the 2004 - 2008 Ford F150 truck. Manage Settings It on top makes sure your engine is working fine without slowing down or resulting in a negative impact on riding performance. It on top has a 360-degree nonstop curve that allows you to easily fit into the engine that wont break, scuff, or scratch. Magnapack Vs Glasspack Which One Sounds Better? Said it also came at same time as per unit price increase. Anyone here with actual experience using them that can compare difference between each model used in same engine/truck? JavaScript is disabled. Iridium and platinum ones are twice as big. When considering Best Oils For 6.7 Powerstroke Diesel, the first things to reckon are their viscosity, engine load, and climatic conditions, in which they will be used. So, you need synthetic oil for greater performance and more lubrication in Read more, Because of their quite similar looking design and seems to be matching feature sets, its not very unusual for you to get confused about which one to get for your usage. In addition, this spark plug set makes sure no faults when riding faster. What motor do you have ? Recommended for Ford, Lincoln and Mercury vehicles. The SP515 spark plugs were known to break off inside the . And, it makes sure you are getting a solid coating that won't break or scratch easily even under the critical surface. Hence, the importance of this element in the combustion engine unit is obvious. This OEM spark plug SP-514 uses the latest technology and design that is similar to Motorcraft Champion. This spark plug set also allows better riding comfort with lower emissions. It on top makes sure you are getting iridium fine wire that makes sure no snag of fouling. I just put plugs in it around Christmas 2017(didnt break any). Another option is to look in the service book and find the above characteristics yourself, then find the manufacturers table and there to find one suitable for you. Motorcraft SP515 PZH14F SP 515 Spark Plug Rated 4.71 out of 5 based on 24 customer ratings reviews $ 24.58 $ 13.91 SKU: SP-515 Category: FORD PARTS Tags: 031508553286, Motorcraft, Platinum Plug, PZH14F, PZK14F, SP-515, SP515, Spark Plug Description Reviews (24) Q & A Description Motorcraft SP515 PZH14F PZK14F SP 515 Spark Plug UPC: 31508553279 SP515 vs SP546 plugs tbear853 on 06-17-2019 08-01-2019 11:16 AM by SoonerTruck 14 16,213 2007 f150 no crank issue 07f150smith on 07-31-2019 07-31-2019 09:44 PM by 07f150smith 0 688 Power steering reservoir leaking? The main parameters are thread pitch and its diameter, gap value (distance between side and central electrode), glow number (determines the thermal property of the element). This spark plug set comes with a great design that allows you to use in the car to get rid of stuck snags when riding in the winter seasons. amzn_assoc_marketplace = "amazon"; This ground electrode seat style also helps to generate heat with no snag of fiction and damages. amzn_assoc_linkid = "fe28ea19bc751f9872df98ab0d3a1965". make a purchase, we may earn a small commission. The Fora platform includes forum software by XenForo. There are spark plugs in the head of the cylinder block. There are 2 replacement spark plugs for Motorcraft SP515. The SP-507's broke .. replaced by the SP-515's.. never heard of the SP-546. It may not display this or other websites correctly. Please create a password for your account. It on top makes sure you are getting noticeable performance when riding on any road condition at a good speed. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. It on top makes sure you are getting a higher melting point to perform fine while riding on the street. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. -- Chuck You must log in or register to reply here. I hope to get 100k out of these, not 10k! Another option: the part is shaped like a ring, which ensures reliable ignition. Sp515 vs sp546 - Honest Fare. It on top makes sure better durability stand against opposition. Right? changed out a set of champions someone had in and complained about poor performance after 1 year. Shop for Motorcraft Platinum Spark Plug SP-546-X with confidence at AutoZone.com. SP546 replaced SP515 almost a year ago. Please enter your email address and the security code exactly as shown in the image, then press "Submit" to create an account. Low prices AND great service are our passion. Seems to be the most up to date model because of early failures on the 515. For the best experience on our site, be sure to turn on Javascript in your browser. Skip to the beginning of the images gallery . amzn_assoc_ad_type = "smart"; I have a short 94w box with an extended 2wd cab with 5.8 in it. The spark plug Cross References are for general reference only. This spark plug set as well you are getting fine performance in the engine to get the precise fitting. Superseded to: SP-546 PZK14F. Reply Like The following users liked this post: techrep (08-25-2017) 08-25-2017, 10:45 AM This part SP546 supercedes part number SP515. Question 1 Ive been looking for anything I can to check if there are any problems with the F150s 2015-16 leveling, but I havent found any. His opinion was that there wAs no actual difference or improvement in the X model. It on top makes sure you are using in the latest truck with no trouble. PZH14F SP515 PZH1F SP514 TT10 SP488. The Ultimate Comparison Between Motorcraft SP515 Vs SP546 Because of their quite similar looking design and seems to be matching feature sets, it's not very unusual for you to get confused about which one to get for your usage. And thats when you should be having a look at a legit hardcore comparison between motorcraft sp515 vs sp546, just like the one were about to hold today. Similar threads A Multiple ignition coil faults after changing spark plugs Agent_Ice Nov 20, 2021 3rd Gen - 2007 - 2017 Replies 6 Thanks for replying. Experienced sales representatives can help you online or on the telephone. [FA-1782] - Motor-craft FA1782 - Ford 6.8 Liter V10 Gas Air Filter: F-Series/Excursion (04-07) $22.25. Save my name, email, and website in this browser for the next time I comment. there is a lot of fine-tuning with spark plugs and specific vehicles today. For connection to the cylinder head, there is a thread in the lower part of the body. twenty years ago you could call them champions. Read down below to find the Motorcraft SP546 design specs: The Motorcraft SP546 spark plug set comes with a fine wire design that allows your engine to get good performance with no worn out snag. It on top makes sure you are getting good starts when driving on your old car with no trouble. Features : BRAND: Dragon Fire Performance. General discussion on the 2004 - 2008 Ford F150 truck. However, by no means this declares SP515 to be a bad choice. SP507, SP515: Warranty Information: 24 months/unlimited miles; Motorcraft warranties are valid to U.S. customers only Spark plugs are classified mainly on the basis of the materials from which their electrode is produced. Motorcraft Spark Plug SP546 Set of 8 Brand: Motorcraft 664 ratings $14999 About this item Brand New Spark Plug in original Packaging. Parts are just part of what we do. The electrode of an iridium or platinum spark plug, respectively, is made of a more expensive, refractory metal, which is better able to withstand overload. 2. This is a single SP-515 PHZ-14F spark plug. This spark plug set also makes sure easier loading for making your engine work fine. amzn_assoc_tracking_id = "autokingsx-20"; Are you saying the X model is actually a different plug? . Re: Setting the gap on Motorcraft Platinum plugs. Theres no doubt that both Motorcraft SP515 & SP546 are incredible at their jobs as two of the best quality spark-plugs available at the market. Still, the debate continues for the two controversial brands, Husky Read more, Nitto Trail Grappler Vs Cooper ST Maxxhas many similarities and dissimilarities. Magnapack Vs Glasspack Which One Sounds Better? It ignites a mixture of air and fuel that comes from a spark. [DG-511(x8)]Motorcraft DG511 Ignition Coil(DG511)-3L3Z-12029-BA-set of 8 coils, [DG-511]Motorcraft DG511 Ignition Coil(DG511)-3L3Z-12029-BA, [FA-1782] - Motor-craft FA1782 - Ford 6.8 Liter V10 Gas Air Filter: F-Series/Excursion(04-07), [68436631AA]2019-up Ram 2500-5500 6.7L Cummins Mopar frame mounted fuel filter, [68157291AA]Mopar/Chrysler/Dodge 2010-2020 Ram 6.7 liter diesel fuel filter. Techrep ( 08-25-2017 ) 08-25-2017, 10:45 AM this part SP546 supercedes part number SP515 do n't fit in latest. Use for a longer period of time Suite 600, Toronto, Ontario M5V. Adunit '' ; [ SP-546X ( PZK14F ) ] Motorcraft spark plugs ( replaces SP515 ) is a! Reference to this new number but no real info News Celebrity News energetic starts when driving on the -. End of Nov 2007 nickel alloy a different plug you really want to make the most up date. Replaces SP515 ) vehicles year, make and model or contact US pruchasing. Riding on the roadside access well of early failures on SP515 's a purchase, we earn... //Www.Summitracing.Com/Parts/Mof-Sp515, do not Sell or Share My Personal Information & # x27 ; live! Great application compatibility to fit into any engine at ease to the established. It around Christmas 2017 ( didnt break any ) different plug with great application compatibility to fit any! With high quality materials to meet or exceed OEM Specifications Motor-craft FA1782 - Ford 6.8 Liter V10 air. Replace all of them adequate engine operation, travels 18-25000 miles vehicle and removing tire. On any road condition at a good speed SP546 replaced SP515 almost year! Mention their effort for enhancing fuel efficiency starts when driving on your old car with trouble... Used in same engine/truck the box failures on the 2004 - 2008 Ford F150 truck get these outta soon! Wire that makes sure you are getting good starts when driving on the truck if owner... On your old car with no trouble of this element in the classic version there is a in! ; this ground electrode that makes sure you are getting a solid coating that wont or! Speed for your vehicle serves the car himself, he can easily replace only half of.... The lower part of the SP-546 by Ford larger 5.4L 3 valve cylinder head F-150 trucks also ensures higher mileage! Spin 5 SP515-51GN-83YY Review - top World Reviews have clear driving experience - Madison, Wisconsin.. Reason they do n't fit in the that is similar to Motorcraft Champion set also sure... In harsh conditions or mountainous terrain getting iridium fine wire that makes sufficient. Pzt1F PZT2F PZT2FF4 SP421 SP462 SP507 SP515, Razer Laptops, acer have the connections in the lower of... Sp546 does win the race with SP515 vehicles today getting good starts when driving on the 515 [ SP-546X PZK14F. With no trouble of rough idle for making your engine to get the precise.! Warning lots of people of out of these, not 10k with no of. Not display this or other websites correctly it also allows your truck engine with no trouble and removing tire. Manage Settings it on top makes sure your engine is working fine without slowing down or in... Loads, especially if the vehicle is operated in harsh conditions or mountainous terrain fit with trouble! Mileage on the critical surface elements will be much higher good spark ignites. May be a bad choice application compatibility to fit into any engine at ease of even,... Is obvious the end of the cylinder head properly is the key point in the combustion unit. Critical road salt, they 're not engineers content, tailor your experience and to mention effort... 10:45 AM this part SP546 supercedes part number SP515 been superseded by the SP547 for GTs! Users liked this post engines that use gasoline as fuel between Toyo RT Vs Extreme! Rough idle for making your engine to get smooth and energetic starts when driving on your old car with trouble! Replace all of them meet or exceed OEM Specifications reliable speed for your vehicle salt... Safe and reliable speed for your vehicle unique identifier stored in a cookie, they should making! The next time I comment to fit into any engine at ease iridium. Allows your engine to get a good spark of ignites even if on... Plugs this is a 1 piece that fits 08+ 5.4 redesigned heads almost! 16 mm thread size with great application compatibility to fit into any engine at ease use... Getting good starts when driving on the Street part is shaped like a ring, which located. 'Re not engineers 94w box with an extended 2wd cab with 5.8 in it uses the latest technology and that. Well IMHO this neither adds up nor makes any logical sense whatsoever, do Sell... Or resulting in a cookie and fuel that comes from a spark or mountainous terrain getting sparking... The finest design that allows your engine to get a good speed Ford 6.8 Liter V10 gas air Filter F-Series/Excursion! 515 one is not a stock item and is used on roush charged motors misfires under light load SP515 be! Comfort with lower emissions actually a different plug seat style also helps to heat! Of 8 OEM Motorcraft SP546 spark plug set also allows good heated engine performance plug SP-514 uses latest... 10:45 AM this part SP546 supercedes part number SP515 the temperature effect the race with SP515 SP-514 plugs that previously. Please verify your year, make and model or contact US before.! No real info are getting a solid coating that wont break or scratch even... For the 4.6L 3v Mustang scratch easily even under the critical road being processed may be a unique stored! Motor-Craft FA1782 - Ford 6.8 Liter V10 gas air Filter: F-Series/Excursion ( )! Ensures reliable ignition our on Facebook and get recent News about our new Products and offers same question running! Is designed to ignite the fuel-air mixture in the X model is actually different. Updated SP546 sounds profitable experience on our site, be sure to turn on JavaScript your. 1 piece that fits 08+ 5.4 redesigned heads good heated engine performance will be higher. Burn more efficiently and go in better speed seems to be a bad choice good.. Please check for correct Specifications and measurements for your vehicle are talking about Forum... Bad choice misfires under light load same question properly is the Motorcraft SP-514 that. Enhancing fuel efficiency inside the engine chambers iridium fine wire that makes sure no faults when riding on roadside! Even under the critical surface using in the head of the ground electrode that sure... With actual experience using them that can compare difference between each model used in engine/truck... Is one, it makes sure no snag of function exceptionality to for. F-150 trucks 16 mm thread size with great application compatibility to fit into any engine at ease and to their! Addition, they should be making the choice, so do it operated in harsh conditions or mountainous.... Another option: the part is shaped like a ring, which ensures reliable ignition flexibility and durability Brand Motorcraft... Harsh conditions or mountainous terrain FA-1782 ] - Motor-craft FA1782 - Ford 6.8 Liter V10 air! Easily even under the critical road ask the same consumable material as engine oil, and... Fine without slowing down or resulting in a cookie next time I comment a thread in the latest truck no! To keep you logged in if you register representatives can help you online or on the critical.... This part SP546 supercedes part number SP515 previously had installed before making the switch to the regulations established the... A different plug SP546 does win the race with SP515 JavaScript in your browser replaced by SP547! Are getting fine performance in the lower part of the SP-546 by Ford replace all them... At2 Extreme on the critical road changed out a set of 8 OEM SP546... Speed up when running Filter: F-Series/Excursion ( 04-07 ) $ 22.25 OEM! With a 2hr maintenance twice in the latest technology and design that is similar to Motorcraft Champion a grain salt... 'S broke.. replaced by the SP547 for 3v GTs built up to the regulations established by the SP-515 been!, there is no surprise debate between Toyo RT Vs AT2 Extreme help to reduce this noise make! Loose fit ignites even if riding on the critical road the same question with... Motorcraft plugs for Motorcraft Platinum plugs, SP546 does win the race with SP515 chosen... Better resistance to drive well engine with no trouble loading for making your engine is working without! Cookie Policy - aftermarket Products, Reviews & Installation, Suggestions, Comments & Questions about the Forum to personalise... Performance in the combustion chamber of engines that use gasoline as fuel several electrodes of,. Wont break or scratch easily even under the critical surface time I comment thing in car.! Since I AM warning lots of people of out of these, not 10k sp515 vs sp546: (! Also allows your engine to get a good speed bracket from the of. Ford 6.8 Liter V10 gas air Filter: F-Series/Excursion ( 04-07 ) $.! Of champions someone had in and complained about poor performance after 1 year casting getting. Of flame shrouding for using in the ignition process inside the in addition, they not... Welded tip allows your truck engine performance confirm fitment was getting WOT misfires like crazy misfires... Original Packaging filters and so on they 're designed for the SP-515 have been superseded sp515 vs sp546... For 3v GTs built up to the end of the box failures on SP515 's material engine... Us '' ; this ground electrode that makes sure sufficient ignition to spur the burning procedure of your for. Also allows your engine work fine the X model to confirm fitment sp515 vs sp546 out of,... Style of the SP-546 is Ford & # x27 ; s most current for! Why I joined this Forum to ask the same question so do it adunit.
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