HPI Savage 21 Delrin Main Gear (49T) by GPM DSAV1049T  [DSAV1049T]

Product overview

This is an RC-scale replacement main gear manufactured by GPM for the HPI Savage 21 platform, sized at 49T and moulded in Delrin. It functions as the primary spur gear in the Savage 21 drivetrain and is intended for direct swap into compatible gearboxes.

The part serves a clear role in drivetrain setup and tuning: it establishes gear mesh with the pinion gear, sets final drive engagement, and affects drivetrain smoothness under load. Delrin as a material provides predictable friction and dimensional stability compared with generic nylons commonly used in stock gears.

Installation is standard for Savage 21 spur gears: remove the gearbox cover, access the spur and pinion engagement area, verify bearing alignment and shaft seating, position the gear on the shaft, and adjust backlash to a correct mesh before reassembling the gearbox. Check pinion gear condition and ball bearings for play as part of the swap to avoid premature wear.

Supplied as 1 pcs, this item is intended for RC model maintenance or modest tuning work where owners prefer Delrin for its machining consistency and dimensional tolerance in aftermarket replacement parts.