FixVault

Spark Plug Specifications

SPARK PLUG SPECIFICATIONS

Application Specification
Spark Plug Type
AC 25171803
NGK 12567759
Gap Iridium .040 in. (1.04 mm)
Platinum .060 in. (1.52 mm)
Tightening Torque Tighten to 15 ft. lbs. (20 N.m) when using NEW cylinder head. Tighten to 11 ft. lbs. (15 N.m) for all subsequent installations.
Firing Order 1-8-7-2-6-5-4-3