PFM HO Shay B-2, B-3, PC 7-tooth helical replacement gear
- Item #: 126-6
Replacement gear for PFM (built by United) HO Shay including the B-2, B-3, and Pacific Coast shay. Also fits the NWSL Willamette engine. Provides better life than the original brass gear. Note: You MUST use this gear with the 12-tooth gear already in the engine. You CANNOT mate two of these gears. Bore is 2.4mm, same as the factory brass gear. Sold each.