Fuel Pump
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Fuel PumpSealing O-Ring Cummins Engine ISC – Engine QSC
O-Ring Seal Cummins Engine ISC 8.3 – Engine QSC 8.3
It seals the joint between mated components, preventing fluid leaks and maintaining circuit pressure. It is installed in a circular seat between two mated components of the fuel system, where it creates a seal that prevents diesel leaks and pressure loss. It is not an external engine block gasket. Some sources refer to this family of seals as Fuel Shaft O-Rings, so the application may be associated with the shaft/fuel system circuit area.
Observed on 6C 8.3 6CT 6CTA, ISC 8.3, QSC 8.3, ISL 8.9, QSL 8.9 engines.
We always recommend checking the ESN and CPL in the Cummins OEM catalog, because the same O-ring is used across different engine families, and the quantity and location may vary depending on the engine configuration.
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Fuel PumpSealing O-Ring Cummins Engine ISC – Engine QSC
O-Ring Seal Cummins Engine ISC 8.3 – Engine QSC 8.3
Used primarily in the fuel pump system, at the point where the pump connects to its housing or mounting surface, Cummins officially specifies it primarily for 8.9-liter ISC/ISL Tier 3 engines. It creates a seal between the mating surfaces of the fuel pump system, preventing leaks and maintaining proper circuit integrity. Made of Viton/FKM, 75 durometer, a material resistant to fuels, oils, and high temperatures.
Observed on 6C 8.3, 6CT 8.3, 6CTA 8.3, ISC 8.3, QSC 8.3, ISL 8.9, ISL9 e QSL 8.9 engines.
Before selling or installing an engine, I always recommend verifying the engine’s ESN and CPL, either using Cummins QuickServe or the OEM catalog, or by checking the original number that was removed. The C/ISC/QSC/ISL/QSL family includes numerous revisions to the fuel system, and a cross-reference may only be valid for certain CPLs or configurations.
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Fuel PumpFuel ShutOff Solenoid Valve 12 Volts Cummins Engine
Fuel ShutOff Solenoid Valve 12 Volts Cummins Engine
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Fuel PumpFuel ShutOff Solenoid Valve 24 Volts Cummins Engine
Fuel ShutOff Solenoid Valve 24 Volts Cummins Engine
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