Part number lookup
RS4638 Replacement Parts
Cross-reference and compare 2 replacement listings for OEM / aftermarket part number RS4638. 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
- Caterpillar · 730
- Caterpillar · 730C
- Caterpillar · 730C2
- Caterpillar · 730C2 EJ
- Caterpillar · 735
- Caterpillar · 735 OEM
- Caterpillar · 735B
- Caterpillar · 735C
- Caterpillar · 740
- Caterpillar · 740 GC
- Caterpillar · 740B
- Caterpillar · 740C
- Caterpillar · 745
- Caterpillar · 745C
- Caterpillar · AD60
- Caterpillar · PM310
- Caterpillar · PM312
- Caterpillar · PM313
- Caterpillar · 345B
- Caterpillar · 345B II
- Caterpillar · 345B L
- Caterpillar · 345C
- Caterpillar · 345C L
- Caterpillar · 345C MH
Frequently Asked Questions
What parts replace OEM number RS4638?
This page lists 2 replacement listings indexed under RS4638. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for RS4638?
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 RS4638 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.