Ok, the old one was about 9 years old, but the running with the new one is so much smoother, no mis-fire, cough or splutter. Perhaps this review should say more about bad PM rather than the virtue of this particular spark plug. If you are thinking of changing you plug - do it!
Verified purchase: Yes | Condition: New
This is the resistor type but I would have bought the non-resistor type as price was about the same. This spark plug is recommended in the manual for my Briggs engine. Its installed and engine runs as it should.
Verified purchase: Yes | Condition: New
i like this product
Verified purchase: Yes | Condition: New
Good quality, arrived on time, correct size, would buy another when needed.
Verified purchase: Yes | Condition: New
Transformed the performance of my mower - easier starting - smoother running
Verified purchase: Yes | Condition: New
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