Part number lookup
503-166 Replacement Parts
Cross-reference and compare 2 replacement listings for OEM / aftermarket part number 503-166. 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
- John Deere · 210 G
- John Deere · 210 P
- John Deere · 310 G
- John Deere · 310 P
- John Deere · 310L
- John Deere · 310L EP
- John Deere · 310SL
- John Deere · 310SL HL
- John Deere · 315SL
- John Deere · 320 P
- John Deere · 325SL
- John Deere · 410 P
- John Deere · 410L
- John Deere · 710 P
- John Deere · 710L
- John Deere · C1 200
- John Deere · C2 400
- John Deere · C230
- John Deere · C440
- John Deere · R2 300
- John Deere · R230
- John Deere · W230
- John Deere · 9970
- John Deere · CP550
Frequently Asked Questions
What parts replace OEM number 503-166?
This page lists 2 replacement listings indexed under 503-166. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for 503-166?
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 503-166 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.