Spark Plug, Denso GK3-7
$23.97
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Iridium Saver DDI for various Cummins engines.
The GK3-7 can be used in the ISX-12 Engines. The plug is exactly the same except the GK3-7 has the two extra “shield” electrodes. ISL-G, ISC-G, ISX-12*
| Cummins (OES) | Description | Denso |
| 4937472 | ISL-G spark plug | GK3-7#4 |
| 4989131 ; 3973945 | ISL-G Boot | 674-1000 |
| 4955850 | ISL-G KIT* | 674-2000 |
| 2888328 | ISX12 G spark plug | GK3-7#4 |
| 2899503 | ISX12 G Boot | 674-1001 |
| 4309391 | ISX12 G KIT* | 674-2001 |
*Request Boot Kit for Cummins ISL-G & ISX12G. Includes: 1 x GK3-7 spark plug, 1 x boot, & 1 x dielectric grease
Spark Plug Spec:
Thread: 14 mm x 1.25 mm
Gap: 0.3 mm
Hex: 16 mm
Reach: 19 mm
Seat Type: Gasket
Torque: Cast Iron
Material: Iridium
