DENSO Heavy Duty

DENSO offers the GK3-7 Iridium Saver Spark Plug and rubber boot kit for Cummins ISX12 G & ISL-G engine applications. This protective rubber boot insulates the plug from the harsh engine environment. Combined with our reliable, long lasting Iridium Saver Spark Plug, DENSO is the perfect combination for Cummins natural gas engine applications.

Spark Plug and Optional Boot Kit

Part Number: 674-2000
Package Contents:
1 x Iridium 3-Prong Spark Plug (Part number: GK3-7#4)
1 x Spark Plug Boot (Part number: 674-1000)
1 x Dielectric Grease

Part Number: 674-2002
Package Contents:
1 x Iridium 3-Prong Spark Plug (Part number: GK4-7#4)
1 x Spark Plug Boot (Part number: 674-1000)
1 x Dielectric Grease

Part Number: 674-2003
Package Contents:
1 x Iridium Spark Plug (Part number: GK3-8#4)
1 x Spark Plug Boot (Part number: 674-1001)
1 x Dielectric Grease