Overview — 3944690
Overview
Replacement Part 3944690 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
Used across a wide range of Cummins models and systems, this unit follows the same mounting and duty as the original, so fitment stays predictable for shops and operators. Suitable for the corresponding machine model and configuration — please verify the machine model, serial number and part number match before ordering.
Maintenance & Replacement
Inspect the part at the manufacturer's recommended interval and replace it while adjacent components are being serviced; never reuse worn or suspect parts, and torque all fixings to the stated figure. Early signs it may need attention: A change in machine behaviour that the service manual ties to this part; Inspections that show scoring, pitting, distortion or hardening on the working surfaces; A machine that runs, but only after workarounds — flags, shims or extra torque — that mask a tired part.
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 3944690) is approximately USD 255 – 580 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
- 3944690
Also in the Replacement Part Series
Same-series, real numbers we also supply (always confirm fit and interchange against your machine): 3944686, 3944688, 3944692, 3944694, 3944696
Racer Machinery is a dedicated construction-machinery parts supplier — we keep a complete range of spare part in stock and verify it against your machine before dispatch. Tell us your part number and model and we will confirm fitment, price and lead time.
