Steel Pinion Gear Set 20T-24T 32P 3.175mm Shaft for 1/10 RC Crawler Trucks - 5 Pack
Steel Pinion Gear Set 20T-24T 32P 3.175mm Shaft for 1/10 RC Crawler Trucks - 5 Pack
This steel pinion gear set includes five different tooth counts—20T, 21T, 22T, 23T, and 24T—all designed for a 3.175mm motor shaft with 32 pitch (0.8 module). Each gear is 11mm tall and comes with its own grub screw, plus a hex key for installation. The set is compatible with many 1/10 scale RC crawler trucks from brands like Traxxas, Arrma, HSP, HPI, Axial, Tamiya, and Losi, making it a versatile upgrade or replacement option.
Key Technical Details
| Tooth Counts | 20, 21, 22, 23, 24 |
| Tooth Pitch | 32 pitch (also known as 0.8 module) |
| Shaft Diameter | 3.175 mm (0.125 inch) |
| Gear Height | 11 mm |
| Material | Steel |
| Package Dimensions | 2.68 x 0.08 x 0.08 inches |
| Item Weight | 6.4 ounces |
| Included Hardware | 5 grub screws, 1 hex key |
How to Ensure Compatibility Before Buying
Before installing, verify two critical measurements. First, the motor shaft must have a 3.175mm diameter (common on most 1/10 RC motors). Second, the spur gear must also be 32 pitch (or 0.8 module). If either is different, the teeth won't mesh properly and the vehicle won't move. The set includes a range of tooth counts so you can fine-tune your gear ratio for torque or speed depending on your driving style.
What's in the Box
- 1 x 20T pinion gear
- 1 x 21T pinion gear
- 1 x 22T pinion gear
- 1 x 23T pinion gear
- 1 x 24T pinion gear
- 5 x grub screws (one per gear)
- 1 x hex key
Common Questions About This Pinion Set
Are these gears a direct fit for my 1/10 Traxxas truck?
They are designed for many 1/10 scale crawlers including Traxxas models, but you must confirm the motor shaft diameter (3.175mm) and spur gear pitch (32P). If those match, they should install easily.
Why does the set include five different tooth counts?
To let you experiment with different gear ratios. A lower tooth count (20T) gives more torque for crawling at low speeds; a higher count (24T) increases top speed. Changing pinion gear can tune performance without replacing the motor or ESC.
What is the difference between 32 pitch and 0.8 module?
32 pitch and 0.8 module are essentially the same standard. If your spur gear is labeled 32P or 0.8M, these pinions will mesh correctly.
Safety Information
This product contains small parts. Not suitable for children under 14 years of age. Always install with care and secure the grub screw firmly to avoid gear slippage.