DENSO Nickel Spark Plugs (like this T20EPR-U15) are made to the highest level of quality available in the field, with machine-rolled threads that prevent seizing or cross-threading during installation or removal. For the most complete combustion and the least amount of flame dissipation, there's only one choice: DENSO.
SPECIFICATIONS
Torque Specs: Cast Iron: 7-15 lb. ft. Aluminum: 7-15 lb. ft.
