Overview
The HPI Racing 18T Pinion Gear is a genuine replacement pinion gear designed as a spare part for HPI transmissions originally supplied as #87218 and #87220 assemblies. The pinion meshes with the spur gear to transfer engine power into the drivetrain.
This direct-fit replacement is ideal for refreshing worn pinions or biasing gear ratio toward more torque (vs. higher-tooth pinions).
Key Features
- Genuine HPI Racing replacement
- 18 tooth count — torque-biased
- Direct factory fit
- Precision-cut teeth
- Durable construction
Performance Benefits
- Stronger acceleration and torque
- Better climbing performance
- Reliable, long-lasting performance
Usage Notes
- Set proper gear mesh — slight backlash
- Replace pinion and spur as a pair when worn
Technical Specs
-
Type: Pinion Gear
-
Tooth Count: 18T
-
Manufacturer: HPI Racing
Fitment
Compatible RC vehicles: HPI Savage, HPI Savage X.
What's Included
- (1) HPI Racing 18T Pinion Gear
Summary
A torque-biased 18T pinion replacement for HPI nitro transmissions.
