Avalanche 2500 4WD V8-8.1L VIN G (2003)
Spark Plug: Application and ID
Spark Plugs ............................................................................................................................................................................................... Denso/PTJ14R15
Spark Plug Gap .................................................................................................................................................................................... 1.52 mm (0.060 in)
Spark Plug Torque .................................................................................................................................................................................. 20 N.m (15 lb ft)