Part number lookup
303MR Replacement Parts
Cross-reference and compare 1 replacement listing for OEM / aftermarket part number 303MR. Use this part-number page — not a generic equipment or brand hub — to review price, availability, and fitment before ordering.
1 Matching Product
Part Numbers and Cross References
Applications and Fitment Summary
- Caterpillar · s: Fit For Caterpillar Excavator: 303.5 D, 303.5C CR, 303.5CCR, 303.5DCR, 303.5E, 303.5ECR, 303C CR, 303CCR, 303MR, 304D CR, 304DCR, 304E, 304ECR, 304E2CR
Frequently Asked Questions
What parts replace OEM number 303MR?
This page lists 1 replacement listing indexed under 303MR. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 303MR?
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 303MR 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.