HSP Steel Spur Differential & Pinion Gear 17T/21T/26T/29T/64T
HSP Steel Spur Differential & Pinion Gear 17T/21T/26T/29T/64T
HSP Steel Spur Differential Main Gear & Pinion Gear Set
Keep your RC car running at peak performance with this precision-cast steel spur differential main gear and pinion gear set, designed specifically for HSP and Redcat 1/10 scale RC models. Whether you're upgrading worn-out gears or building a custom RC drivetrain, this durable steel gear delivers smooth, reliable power transfer on and off the track.
Compatible Models
- 17T & 21T Pinion Gears: HSP 94111 / 94111PRO
- 26T Pinion Gear: HSP 94107, 94170, 94123, 94103
- 29T Pinion Gear: Compatible with select HSP/Redcat models
- 64T Main Differential Gear: Universal fit for 1/10 scale HSP/Redcat models — 94103, 94103PRO, 94107, 94107PRO, 94111, 94111PRO, 94170, 94170PRO
Key Features
- Premium Steel Construction: Precision-cast steel for maximum durability and long-lasting wear resistance
- Spur / Ring Gear Profile: Engineered spur tooth profile ensures smooth, efficient gear mesh and consistent power delivery
- Multiple Tooth Options: Available in 17T, 21T, 26T, 29T (pinion) and 64T (main differential gear) to suit your specific build
- Aperture: 3.17 mm bore for precise motor shaft fitment
- Direct Replacement: 100% brand new — drop-in fit for supported HSP and Redcat RC models
- Made in Mainland China
What's in the Box
- 1 × Motor Pinion or Main Differential Gear (as selected)
Note: Actual color may vary slightly from images due to monitor settings and lighting conditions. Please allow ±1–3 cm tolerance due to manual measurement.
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Frequently Asked Questions
Q: Which HSP RC models are compatible with this steel spur gear set?
A: This gear set is compatible with HSP and Redcat 1/10 scale RC models including 94103, 94103PRO, 94107, 94107PRO, 94111, 94111PRO, 94170, and 94170PRO. The 17T and 21T pinion gears are specifically for the 94111/94111PRO, while the 26T fits 94107, 94170, 94123, and 94103 models. The 64T main differential gear is universally compatible across 1/10 scale HSP/Redcat platforms.
Q: What is the bore/aperture size of the pinion gear?
A: The pinion gear features a 3.17 mm aperture (bore diameter), designed to fit standard motor shafts on compatible HSP and Redcat 1/10 RC vehicles for a secure and precise fit.
Q: Is this a direct replacement gear or does it require modification?
A: This is a direct drop-in replacement gear. It is precision-cast from steel and designed to meet OEM specifications for supported HSP and Redcat RC models, requiring no modification for installation.
Q: Why choose a steel gear over a stock plastic gear?
A: Steel spur and pinion gears offer significantly greater durability and wear resistance compared to standard plastic gears. They handle higher torque and heat generated during aggressive driving, extending the lifespan of your RC car's drivetrain and improving overall performance.