🔥 MAS Ignition Coils DG521 and Motorcraft SP-509 Spark Plugs: Ford Expedition & F-Series Compatible - 6.8L, 5.4L, 4.6L, C1659 DG521 8L3Z-12029-A Review

DO NOT USE THEM FOR 2008 F-150, even the spark plug didn't work. I had to reorder the spark plugs from a nearby auto parts store. The supplied spark plug looks different than pictured. After I put everything in it the problem was solved, after about a week he started doing the same. Do yourself a favor, don't go cheap, it will save you more money in the long run!

Install it on a 2008 F350 with over 450,000 km and the new ignition system will really wake the truck up. Later the truck was sold after the conversion and the next owner is still running without problems. Also, the 3-valve engines they are designed for have an improved head design over 2-valve engines with aluminum heads that tend to spit out plugs. Easy to install and high quality coils along with OEM connectors.

Worked fine when I installed on July 1, 2019 (awaiting mechanic schedule). Plug replaced at the same time. The truck overturned about a month ago. The mechanic replaced the coil, said it was bad, and threw the old one away. After that the truck ran fine and this week another pack of coils failed. These two have so far only about 2000km. Poor or defective item. How can I get replacement and will continue to happen.

Although the listing does not specifically state that the coils are Motorcraft OEM coils, the photos and description are misleading. Similar clone coils combined with Motorcraft connectors give customers the impression that both are factory Motorcraft parts. That's not the case. Motorcraft spark plugs appear to be real, but make no mistake, the coils are replica. Coils are supplied unmarked in basic packaging.

I used to set up candles and coils. However, any experienced person should not attempt to change forks unless you are prepared for the extra work if a fork breaks. Tip: After removing the coil, blow out the spark plug hole. Take a powerful blaster and spray into the hole. Unscrew the fork with the magnetic socket half a turn and insert the blaster into the hole at the top of the fork base. This will soften the soot at the end of the candle. After about an hour, carefully remove the cork.

I couldn't believe the prices in other stores and online stores. Plugs range from $8 to $12 each, while reels range from $40 to $90 each. Seeing the Revain listing for less than half what others were asking, I figured they were going to be cheap knockoffs. I thought they would turn up in a bag wrapped in Chinese newspaper. I can only say WOW! Outstanding presentation. Then I thought it was probably lipstick on a pig. Wrong again! Candles original or not. Not damaged and all clearances were…