NGK BPR4ES Spark Plug 2 Pack for Kawasaki 6578, Toro 92070-7004, and Arien 9873 Review

The world's most sparkling spark plugs. They work great with my Cub Cadet mower's Kawasaki engine, just like the originals.

There is not much to say here, but good spark plugs in original quality. I have been using NGK for many years and I am very satisfied with their quality and performance. They are easy to install and work as expected.

I removed the spark plug from my ONAN 4000 RV 2000 generator. It was a CHAMPION RN14YC spark plug. I was able to use this "NGK 6578 BPR4ES SOLID" spark plug as a replacement. Almost identical in size and shape. ONAN started work immediately!

I removed the spark plug from my ONAN 4000 RV 2000 generator. It was a CHAMPION RN14YC spark plug. I was able to use this "NGK 6578 BPR4ES SOLID" spark plug as a replacement. Almost identical in size and shape. ONAN started work immediately!

Replaced as a view on my J. Deere lawn mower. with factory plug. (Twin cylinder) Two years (about 75 hours) have passed since the last spark plugs were installed. Note that the engine starts faster and easier when idling. Also note that I adjusted the valves as that was part of the Kawasaki recommended maintenance schedule.