E3.10 Diamond Fire Small Engine Spark Plug. Lifetime Guarantee. For All 2-16 HP 4 Cycle Small Engines.Replaces Champion 5861, J17LM, RJ17LM, J19LM, RJ19LM; Replaces NGK B2LM, BR2LM, B4LM; Replaces Autolite 458, SE458, 456 14mm Thread Diameter, .375″ Reach, 13/16″ Hex.
- Diamond-Fire Technology-Lifetime Warranty
- Greater Fuel Economy (up to 13%)
- More Horsepower (up to 12%)
- Fewer Emissions (cut by more than half)
- Quicker Starts
