MAS Set of 8 Ignition Coil DG508 & Motorcraft Spark Plug SP479 Compatible with Ford 5.4L V8 DG472 DG457 DG491 Crown Victoria Expedition F-150 F-250 Mustang Lincoln Mercury Explorer

These spark plugs were a great price and worked perfectly.

Great productArrived on time

Installed them about 2 weeks ago, and working great, good quality great price.

Coil packs, The price you cannot beat.. However don't throw away your old ones too quick because 1 or 2 of the 8 may short out within a few weeks or they may not... Mine did.

EXCELENTE

I read all the reviews about using different brand coils how it was bad for the vehicles ect. I am the original owner of a 2003 expedition 5.4 2 valve engine. It has 177,000 miles. I used to pay a reputable company to service my vehicles but since retired and do all my own maintenance. I couldn't believe all the things I found wrong in that motor while doing this job. All coild were different, all connectors were broken, all vacuum boots were melted. I thought the motor was just tired but now I can't believe it ran that solid until I finally gor a misfire code on cylinder one. I'm surprised how many issues I had. Now after putting in these coils, the new plus and fixed the vacuum that expedition runs like the day I bought it. Now I guess I need to fix the roof it runs so good.

I installed this set as a precautionary step for maintaining my engine for break downs. I drove about 2 days on this set and had a misfire on #4 cylinder and barely got home with the misfiring and lack of power. I suspect the coil on that cylinder is defective as they are not oem coils but the plugs that come in the set are. And just an FYI I didn't have any issues on the engine prior when the original parts were installed. just doing preventive maintenance on the truck.

Very easy to order and all the parts were exactly what I needed for my vehicle