Motorcraft SP-479 Spark Plug

Ordered thru Auto Parts Wholesale-Plugs are Genuine Motorcraft. Exc. Seller & Value, don't hesitate to buy. I read where one/some had received them (not necc. thru this Vendor) & the ceramic was cracked so You'd better ck as a precaution. Mine came in std. Motorcraft pkg. inside a pouch, so ckd. just to make sure-We're good 🙏 !!! Also if You have the Triton Engine You need to ck Youtube as to how to change them as they can be problematic. Also a tip that another reviewer mentioned You may want to order a GearWrench 5/8"Sparkplug Socket Wrench # 80546 (can be ordered Here thru Amazon) - You may not think You'd need it (I have a Bunch of Sockets & Adapters/Extensions etc., Do YourSelf a favor find the Tool & read the reviews) as this particular one is the Extension & Socket that is made in one unit (which swivels) that has a somewhat stout Magnet as opposed to the rubber or nothing in the Socket to Help You get the Plug out of the hole that it's in. I had already been thinking about making sure that I had a Socket with at least the Rubber Insert to secure the Plug before I ran across the info on the Tool (Thank You Fellow Reviewer !) It is a Nice Tool & seems Well Made.(it also has a LifeTime Warranty). Best, PawPaw C.

An absolute must if you’re working on a Ford. I have an F150 with a 5.4 and haven’t changed plugs ever due to the aluminum heads and stripping issues. When I had to replace my coils I figured it was time for plugs too. These ARE original equipment and are what you should use. They are more expensive than the cheep knockoff plugs you find everywhere but you don’t want to play around with potential issues that can occur when changing plugs. I always check gap on new plugs and these were all gapped correctly.

Product work to describe.

Perfect Autolite Ford spark plugs. I Just removed my identical original equipment plugs that came in my truck from the factory over 100k miles ago so I know the quality is there. I highly recommend!!

Replaced some real old plugs in an E450. The price was better than any autoparts store so i got them here. The packaging was a bit shabby, a few of the plug boxes were crushed but luckily nothing was cracked. They come pregapped as well between .052 and .056. Installation was easy and the engine is running smoothly now.

You can’t beat buying the correct part…. Perfect fit on my Triton V10

Perfect fit and performance on my f250 v10. OEM quality

It is always best to use OEM products, the one your vehicle left the factory with as they are designed to work flawlessly. Why try and save a few bucks when it comes to how your truck runs? Even spending extra money on hotter plugs is a waste unless you have low compression in that cylinder and want to make sure you get a better burn, which is debateable and not always desirable for other reasons. If you get a plug that is not in the specs required, you will lose that money on poorer gas mileage most likely and it can cause drivability problems as your computer will have to try and compensate for the incorrect plug. All of these things are monitored now. It's not like the old days of bored out cylinders, custom intakes, exhausts, special cams and being able to play with your engine for racing, those days are over, now slight differences in the signal the PCM reads has a direct impact on other components and vehicle not getting the proper burn.