Part number lookup
BT121 Replacement Parts
Cross-reference and compare 1 replacement listing for OEM / aftermarket part number BT121. 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
- Stihl · s: Fit For Stihl Brush Cutter Trimmer FS120, FS200, FS250, FS300, FS350, FR350, FR450, FR480, HT250, BT120C, BT121, SP200
Frequently Asked Questions
What parts replace OEM number BT121?
This page lists 1 replacement listing indexed under BT121. Compare cross references, applications, and pricing before ordering.
How do I confirm fitment for BT121?
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 BT121 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.