Spark Plug, Denso GK3-7
Available from factory - Estimated to ship in: 8 days.
The GK3-7 is basically a GK3-1 with two “dummy” ground straps without precious metal.
A budget approach to create kind of “shielding from flow” in the combustion chamber, while keeping the original properties of the GK3-1
Higher quality Bosch 7341 or Denso GK3-1 can be used as replacement. Request information from eChoiceParts.com team on performance and emissions
Denso 674-2008 is a kit including 6 of the GK4-7 plugs https://echoiceparts.com/item/DEN--674-2008
Iridium Saver DDI for various Cummins engines. Target User: Transit Fleets, School Bus Fleets, Waste Fleets, Fulfillment center trucks
C Gas Plus
GK3-7#4
• .35 mm GAP/ Three Prong" "ISL·G and L9N
ISL·G and L9N
GK4-7#4
• .40 mm GAP/ Three Prong" "ISX12G and ISX12N
ISX12G and ISX12N
GK3-8#4
• .35 mm GAP/ Single Prong"
| DENSO | Cummins Engine Application | Cummins (OES) |
| GK3-7#4 | C Gas Plus, L Gas Plus | 4937472 |
| GK4-7#4. | ISL-G, L9N Spark Plug | 5443024 |
| GK3-8#4. | ISX12 G, ISX12N Spark Plug | 2888328 |
| 674-1000. | ISL-G, L9N Boot | 4989131, 3973945 |
| 674-1001. | ISX12 G, ISX12 N Boot | 2899505 |
| 674-2000. | C Gas Plus, L Gas Plus Spark Plug KIT (GK3-7#4) | 4955850. 5473010 |
| 674-2001. | ISX12 G Spark Plug KIT (3 prong) (GK3-7#4) | 4309391 |
| 674-2002. | ISL-G, L9N Spark Plug KIT (1 prong) (GK3-8#4) | 5473009 |
| 674-2003. | ISX12G, ISX12 N Spark Plug KIT (1 prong) (GK3-8#4) | 4309591 |
| 674-2007. | 6 pack ISX12G, ISX12N Spark KIT (1 prong) (GK3-8#4) | 4509591 (single pack version) |
| 674-2008. | 6 pack ISL-G, L9N Spark Plug KIT (GK4-7#4) | 5473009 (single pack version) |
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
