Overview
The HPI Racing HD Machined Helical Diff Gear Set is a high-strength drivetrain upgrade featuring a precision-machined 32-tooth ring gear and 13-tooth pinion in module 0.7. Helical-cut teeth deliver smoother power transfer with reduced noise compared to traditional spur-cut gears, making this an excellent upgrade for both performance and refinement.
Machined from hardened steel for exceptional durability, this gear set is designed to handle high-output brushless or nitro power without the wear and breakage common with stock plastic components.
Key Features
- Precision-machined helical-cut teeth
- 32T ring gear / 13T pinion
- Module 0.7 (M0.7) pitch
- Hardened-steel construction
- Direct OEM replacement / upgrade
Performance Benefits
- Smoother and quieter power delivery than spur-cut gears
- Higher strength than stock plastic gear sets
- Improved tooth contact distributes loads evenly
- Long service life under demanding power
Usage Notes
- Set proper gear mesh during installation
- Use diff oil/grease appropriate to your application
- Helical gears generate slight axial thrust – ensure bearings are properly seated
Technical Specs
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Type: HD Machined Helical Diff Gear Set
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Ring Gear Teeth: 32T
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Pinion Teeth: 13T
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Pitch: Module 0.7 (M0.7)
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Material: Hardened steel
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Manufacturer: HPI Racing
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Part Number: 161422
Fitment
- HPI vehicles specified for the 32/13T M0.7 helical diff gear set
- Common applications across HPI Venture and Mini King platforms where this set is referenced
- Verify part number against your vehicle's manual prior to ordering
What's Included
- (1) HPI Racing HD Machined Helical Diff Gear Set (32/13T M0.7)
Summary
For drivers who want a stronger, smoother, and quieter drivetrain, the HPI Racing HD Helical Diff Gear Set is a proven upgrade that pairs durability with refined performance.
