Makita SPIRAL BEVEL GEAR 14 UC4020A - 227495-4
Genuine Makita straight bevel gear — part 227495-4. Precision-machined straight-cut bevel gear with 14 teeth, designed to replace the worn gear in the UC-series chain saw gearbox and restore quiet, accurate engagement.
Key details: straight bevel (14 teeth); measured bore/seat about 11 mm and overall gear face height ~14.5 mm (metric). Fits into the chain tensioner/drive area and is sized to line up with the factory mating pinion.
Example compatible models: found on parts lists for UC4030A and other UC-series saws — commonly used with models such as UC4030A, UC4020A, UC3020A and the UC250D / UC300D. Also BUC250 / BUC250C and BUC300. Use this original Makita gear when replacing a damaged or stripped part to get correct fit and tooth profile.
mating gear on the driveshaft at the same time. Installing a brand-new gear against a worn or chipped companion gear will cause rapid, premature failure of the new part.
Jump straight to the Makita spare parts diagrams:
Compatible models this part will fit:
