493-7766 Electric Fuel Pump for Cummins QSL9 QSC8.3 QSB5.9

4937766 Fuel Transfer Pump for Cummins ISDe ISLe Engine

The 4937766 fuel transfer pump is supplied as an aftermarket replacement electric fuel transfer pump for Cummins diesel engine fuel system applications. It helps deliver fuel on the low-pressure supply side and supports stable fuel delivery before the injection system.

This product page focuses on the 4937766 / 493-7766 electric fuel transfer pump direction. It is commonly searched together with Cummins ISDe, ISLe, QSL9, QSC8.3 and QSB5.9 engine applications. Both 12V and 24V versions are available, so the required voltage should be confirmed before quotation.

Application for Cummins QSL9 QSC8.3 QSB5.9 Engines

The 493-7766 electric fuel pump is commonly listed for Cummins ISDe and ISLe engine applications. It also appears in supplier listings for QSL9, QSC8.3, QSB5.9, ISL and L9 engine families. Before ordering, the old pump label, engine model, machine model and voltage should be checked to confirm the correct replacement.

Fuel Pump Replacement Notes

A fuel transfer pump should be checked when the engine has weak fuel delivery, hard starting, unstable running, fuel starvation or low-pressure fuel supply issues. During replacement, inspect the fuel lines, electrical connector, voltage label, mounting position, sealing surfaces and filter condition at the same time.

Order Confirmation

To confirm the correct 4937766 fuel transfer pump, please send the old pump part number, engine model, machine model, required voltage, connector photos and clear photos of the original pump. Topvelsun can help check the fitment before quotation and shipment.

FAQ

Q1: Which Cummins engines can this fuel pump fit?

This 4937766 fuel transfer pump is commonly supplied for Cummins ISDe and ISLe engines. It is also used in related Cummins QSL9, QSC8.3, QSB5.9, ISL and L9 engine applications. Final fitment should be confirmed by the old pump label and engine model.

Q2: Do you supply both 12V and 24V versions?

Yes. Both 12V and 24V versions are available. Please confirm the required voltage from the old pump label, machine electrical system or sample photo before quotation.

Q3: What symptoms indicate the fuel pump may need replacement?

Common symptoms include hard starting, weak fuel delivery, unstable engine running, fuel starvation and low-pressure fuel supply issues. The old pump, fuel lines and filters should be inspected together.