Review on Autolite 258-4PK Copper Non-Resistor Spark Plug: 4-Pack for Optimal Performance by Black Miller

Name: Autolite 258-4PK Copper Non-Resistor Spark Plug: 4-Pack for Optimal Performance
Item: Autolite 258-4PK Copper Non-Resistor Spark Plug: 4-Pack for Optimal Performance
Rating: 1

March 03, 2023

Not identical to Champion CJ14

Not identical to Champion CJ14 lawnmower spark plugs. The metal tip over the porcelain is shorter so the spark plug cap keeps popping out. This is on a Wisconsin Robin lawn mower engine. I recommend the Champion 846 CJ14.

Pros

Multi-ribbed insulator reduces risk of burnout

Cons

Annoys me

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