HSP RC Steel Pinion & Spur Differential Gear 17T 21T 26T 29T 64T

HSP Redcat Steel Pinion & Spur Differential Main Gear Set

Upgrade or replace worn gears on your HSP Redcat 1/10 RC car with this precision-made steel metal pinion and spur differential main gear. Available in multiple tooth counts — 17T, 21T, 26T, 29T, and 64T — these gears are designed to deliver smooth, reliable power transfer and long-lasting performance on the track or trail.

Compatible Models

• 17T & 21T: HSP Redcat 94111 / 94111PRO
• 26T: HSP Redcat 94107 / 94170 / 94123 / 94103
• 64T Steel Gear: Compatible with 1/10 scale RC cars (general fit)
• Also fits: HSP 94103PRO / 94107PRO / 94170PRO

Key Specifications

• Material: High-quality steel metal for durability and precision
• Available Tooth Counts: 17T, 21T, 26T, 29T, 64T
• Aperture / Shaft Bore: 3.17 mm
• Quantity: 1 pc (Motor Pinion / Main Gear)
• Color: As shown in product images
• Condition: 100% brand new
• Made in China

Why Choose This Gear?

• ✅ Steel construction for superior durability vs. standard plastic gears
• ✅ Multiple tooth configurations to match your specific model's drivetrain
• ✅ Precise 3.17 mm bore for a secure fit on motor shafts
• ✅ Direct OEM-style replacement — no modifications needed
• ✅ Great for hobbyists doing routine maintenance or performance upgrades

Package Contents

• 1 × Motor Pinion / Spur Differential Main Gear (tooth count of your choice)

Note: Due to monitor brightness and manual measurement, actual color may vary slightly and please allow ±1–3 cm tolerance.

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Frequently Asked Questions

Q: Which tooth count (17T, 21T, 26T, 29T, or 64T) do I need for my HSP RC car?

A: The correct tooth count depends on your specific model. The 17T and 21T pinion gears are designed for HSP 94111 and 94111PRO models. The 26T fits the 94107, 94170, 94123, and 94103 models. The 64T spur gear is a general-fit option compatible with most 1/10 scale HSP Redcat RC vehicles. Always confirm your model number before ordering.

Q: What is the shaft bore (aperture) of these pinion gears?

A: All pinion gears in this listing have a shaft bore of 3.17 mm, making them a direct fit for standard HSP Redcat motor shafts without any modifications.

Q: Are these steel gears an upgrade over the stock plastic gears?

A: Yes! These steel metal gears offer significantly greater durability and wear resistance compared to standard plastic gears. They are ideal for hobbyists who want longer-lasting performance, especially during high-speed runs or off-road driving.

Q: How many gears are included in one purchase?

A: Each purchase includes 1 piece — either a motor pinion gear or a spur differential main gear, depending on the tooth count option selected. Please select the correct variant for your needs.