Denso GK3-7

Denso gk3-7 spark plug

The Denso GK3-7 spark plug is designed specifically for the Cummins ISL-G and ISB-G compressed natural gas (CNG) engine. The spark plug GK3-7 is also available in an aftermarket kit with a rubber boot or with a rubber cable.

The GK3-7 is equivalent to the original Cummins IR-3 plug.

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