x 40mm piston kit 1123-030-2003 compatible with Stihl 021 023 MS210 MS230 chainsaws

40mm Chainsaw Piston Kit: Compatible with common compact saws; compatible with Stihl 021, Stihl 023, Stihl MS210, and Stihl MS230; verify 40mm bore before purchasing.
Replacement Piston: OEM part number 1123-030-2003 for reference; includes 40mm piston, 2 rings, 10mm wrist pin, and 2 circlips; restores sealing surfaces when the original kit shows wear or scoring.
Aluminum Alloy Piston: Key features include helping to restore compression and smoother operation; precise 40mm crown and low-friction rings. 10mm pin for a stable fit and consistent ring seating during breakage. Chainsaw repair parts kit: Functional uses include high-end tune-ups after hours of cutting, low power, smoke, or hard starting. Supports scheduled service or repairs after lean mixture or heat-related scuffing. Home forestry tasks: Application scenarios include firewood cutting, yard cleanup, farm and ranch work, storm debris, and light forestry; suitable for hobbyists and small engine technicians looking for effective repairs.