Part number lookup
3991521 Replacement Parts
Cross-reference and compare 3 replacement listings for OEM / aftermarket part number 3991521. Use the product cards below to review price, availability, and fitment before ordering.
3 Matching Products
CumminsAir Brake Compressor 3991521 for Cummins Engine ISD4.5 G5.9 ISF3.8 B4.5 FORD CARGO C1317e C1517e C1717e C2428e$845.52
CumminsRepair Kit of Air Brake Compressor 3991521 3696936 for Cummins Engine ISD4.5 G5.9 ISF3.8 B4.5$104.00
CumminsRepair Kit of Air Brake Compressor 3991521 3696936 for Cummins Engine ISD4.5 G5.9 ISF3.8 B4.5$157.87Part Numbers and Cross References
Applications and Fitment Summary
- Part Number
- Cummins Engine ISD4.5 G5.9 ISF3.8 B4.5 FORD CARGO C1317e C1517e C1717e C2428e Air Brake Compressor 3991521
- Cummins Engine: ISD4.5 G5.9,ISF3.8 B4.5FORD CARGO:C1317e,C1517e,C1717e,C2428e
- Cummins · s : C1317E, C1517E, C1717E, C2428E
Frequently Asked Questions
What parts replace OEM number 3991521?
This page lists 3 replacement listings indexed under 3991521. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 3991521?
Match the stamped part number first, then verify machine model, engine code, serial number, mounting points, and photos of your old part before checkout.
Can I request a quote if 3991521 is not an exact match?
Yes. Use the fitment inquiry form with your machine plate, engine model, and photos. Support can review alternatives or cross references.