Part number lookup
173-1203 Replacement Parts
Cross-reference and compare 2 replacement listings for OEM / aftermarket part number 173-1203. 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
- CAT · CAT
- Caterpillar · Fit for Caterpillar CAT Excavator: 311C, 311D LRR, 312C, 312C L, 312D, 312D L, 314C, 314D CR, 314D LCR, 315C, 315D L, 319D, 319D L, 319D LN, 313D, 318D L
Frequently Asked Questions
What parts replace OEM number 173-1203?
This page lists 2 replacement listings indexed under 173-1203. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 173-1203?
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 173-1203 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.