Part number lookup
3903749 Replacement Parts
Cross-reference and compare 2 replacement listings for OEM / aftermarket part number 3903749. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.
2 Matching Products
Part Numbers and Cross References
Applications and Fitment Summary
- Cummins · Cummins Engine: 4B, 4BT, 4BTA, 6B, 6BT
Frequently Asked Questions
What parts replace OEM number 3903749?
This page lists 2 replacement listings indexed under 3903749. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 3903749?
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 3903749 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.