Overview — Replacement Part 4003988
Overview
Replacement Part 4003988 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
Replace this component on a schedule rather than waiting for failure — new parts seat into the machine cleanly, while edge-worn ones let small faults grow into expensive ones. Check it at every major service and renew it before signs of wear progress. Early signs it may need attention: Unusual noise, poor performance or a developing leak that points at the failing component; Recurring minor faults on nearby components that trace back to this unit degrading the circuit; Visible wear, corrosion or damage that is accelerating on the part and its neighbours.
Installation Essentials
Work on a clean machine with the engine off and the relevant system drained or depressurised as required, and confirm the part number against your machine model and serial number before ordering. Verify batch condition and surface finish on delivery, and flag anything that looks off before fitting rather than after. 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 4003988) is approximately USD 260 – 590 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
- 4003988
Also in the Replacement Part Series
Same-series, real numbers we also supply (always confirm fit and interchange against your machine): 4083403
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.







