Overview — Replacement Part 3920780
Overview
Replacement Part 3920780 is a commonly used spare part in construction machinery. We can supply all the original and replacement part numbers listed below, in stock or available on order — welcome to enquire by part number.
Applicable Models & Applications
This replacement component is used on Cummins machines and systems, matching the original fit and function. Suitable for the corresponding machine model and configuration — please verify the machine model, serial number and part number match before ordering.
Maintenance & Replacement
Because it is exposed to debris, heat and load on every shift, this part should be treated as inspectable-and-replaceable rather than fit-and-forget. Compare its condition against the manual's wear limits each time the machine is serviced. Early signs it may need attention: A change in machine behaviour that the service manual ties to this part; A part that no longer holds its original clearance, tension or seal after repeated service intervals; Recurring minor faults on nearby components that trace back to this unit degrading the circuit.
Installation Essentials
Confirm the part number against your machine model and serial number before ordering. Work on a clean machine, with the engine off and the relevant system depressurised or drained first. Fit new seals, gaskets or O-rings and torque every fastener to the manual's figure. After installation, run the machine and check for leaks, unusual noise or abnormal travel before returning it to service, and retighten where the manual calls for it after the first hours of operation.
Reference Price
The reference price for this Replacement Part (listed under 3920780) is approximately USD 235 – 540 per unit, depending on configuration, quantity and shipping destination. This is an estimate for planning purposes — please confirm current pricing and availability with our sales team before ordering.
Available Part Numbers
- 3920780
Also in the Replacement Part Series
Same-series, real numbers we also supply (always confirm fit and interchange against your machine): 3918472, 3903939, 3901220, SCR9341
Whether you need one unit or a fleet batch, Racer Machinery verifies every spare part against the machine it is meant for, so you buy the right match the first time. Send us your part number and machine model for a quote.







