🔥 Champion (515) D15Y Traditional Spark Plug: Optimal Performance in a Convenient Pack of 1 Review

Using this replacement part, our team found that it failed to ignite at times, causing delays and frustration. The one positive aspect is that it was easy to install. However, the frequent ignition problems overshadowed any benefit. We ended up purchasing another replacement part from a different brand that worked flawlessly.

I thought the tractor engine was dead. The old spark plug looks good. However, I replaced it and the new one started without much hassle.

Contrary to the last poster we have been using them on a Farmall 140 since the 70's and can't say we've ever had a problem with their durability. Maybe they changed once a decade. If something happens and I have problems with new ones, I will change my rating, but no problems so far. Like the other poster, I love NGK plugs, but they weren't even here on Revain.