Availability: If in stock ships same day, ordered stock up to 4 day delay

Champion Spark Plug shop pack of 24 J17LM spark plugs
Gap: 0.8 mm
Thread diameter: 14mm
Thread reach: 9.5mm
Seat type: flat
Hex size: 21mm
A very Popular Lawnmower plug you can also use J19LM for a hotter burn.
For any questions please give us a call 800-305-9255