Traxxas 20-T Pinion Gear 32-Pitch Hardened Steel RC Replacement TRX3950X

Overview

The Traxxas 20-T Pinion Gear (32-pitch) Set TRX3950X is a precision-engineered replacement pinion gear designed for serious RC enthusiasts who demand reliability and performance from their electric RC cars and crawlers. This hardened steel component is purpose-built to withstand the demanding conditions of high-speed running, whether you're bashing across rough terrain or competing in organised RC racing events across the UK. The 20-tooth configuration paired with the 32-pitch specification makes this an essential upgrade or replacement for anyone running compatible Traxxas models, ensuring optimal power delivery and smooth acceleration.

If you're operating a Traxxas Mini Maxx BL-2S, Rustler Ultimate VXL 4x4, TRX-4 2021 Ford Bronco, or TRX-4 Defender, this pinion gear is engineered specifically for your vehicle's drivetrain. Whether you're a competitive racer fine-tuning your setup for maximum performance, a weekend basher pushing your RC car to its limits, or an experienced hobbyist maintaining and upgrading your fleet, this genuine Traxxas component delivers the quality and durability you expect from the brand. As part of your regular RC car maintenance routine or as a performance upgrade, choosing the correct pinion gear is crucial for achieving the exact gear ratio your vehicle needs.

RC car UK enthusiasts know that drivetrain components like pinion gears are wear items that require periodic replacement, especially if you run your brushless RC cars frequently or in sandy, dusty, or muddy conditions. The Traxxas Heavy Duty Hardened Steel construction means this gear will withstand thousands of charging cycles and countless hours of running time without premature wear or tooth stripping. Backed by Traxxas's reputation for quality, this pinion gear is a genuine OEM part that ensures perfect compatibility with your specific model.

Key Features

• Heavy Duty Hardened Steel Construction — The pinion gear is manufactured from hardened steel, which significantly increases resistance to wear, tooth stripping, and damage from impacts or high-torque motor runs, ensuring your drivetrain stays reliable through extended use and challenging conditions.
• 20-Tooth Configuration — The 20-tooth design is specifically matched to deliver optimal performance in compatible Traxxas models, providing the ideal balance between acceleration and top speed while maintaining smooth power delivery across the full RPM range.
• 32-Pitch Standard Specification — The 32-pitch (32DP) specification ensures precise meshing with compatible spur gears in your RC car's drivetrain, which is critical for efficient power transfer, reduced noise, and extended component lifespan.
• 3.2mm Bore Diameter — The precisely machined 3.2mm bore fits securely onto compatible motor shafts, ensuring rock-solid engagement and eliminating slippage during acceleration or high-torque situations.
• Genuine Traxxas OEM Part — As an official Traxxas component, this pinion gear is engineered and quality-tested to the manufacturer's exact specifications, guaranteeing perfect compatibility and performance with your specific RC vehicle model.
• Wide Vehicle Compatibility — This pinion gear works with an extensive range of Traxxas models including the Mini Maxx BL-2S (available in green, blue, black, and orange), Rustler Ultimate VXL 4x4 1:10 brushless versions, TRX-4 2021 Ford Bronco (in red, white, orange, and black), and TRX-4 Defender 4WD RTR models (in red, silver, green, and sand).
• Essential Maintenance Component — Whether replacing a worn gear from regular use or upgrading as part of a drivetrain refresh, this component is a straightforward swap that requires no special tools or expertise beyond basic RC car maintenance knowledge.

Technical Performance

The Traxxas 20-T Pinion Gear (32-pitch) Set represents the engineering excellence that has made Traxxas the preferred choice for RC enthusiasts throughout the UK and worldwide. The hardened steel material undergoes specialized treatment to increase surface hardness and resistance to the constant stresses placed on a pinion gear during motor operation. Every tooth is precisely cut to exact tolerances, ensuring clean, efficient meshing with your spur gear and eliminating the slop or noise that can develop in lower-quality components. The 3.2mm bore is meticulously machined to provide a secure fit on your brushless or brushed motor shaft, preventing the slippage that would otherwise reduce power transfer efficiency and create frustrating flat spots during acceleration. This precision engineering is particularly important for brushless RC cars, where high motor RPMs and significant torque demand perfect drivetrain synchronisation. The 32-pitch specification is the industry standard for this class of RC vehicles, meaning this gear integrates perfectly into the complete drivetrain system of your Traxxas model. Whether you run your brushless RC car on 2S or 3S LiPo batteries, the hardened steel construction provides the durability needed to handle the high-torque characteristics of modern brushless motor systems. For competitive racers, the precise tooth profile ensures consistent acceleration response lap after lap, whilst for casual bashers, the robust construction means fewer breakdowns and more time enjoying your hobby. Regular inspection and replacement of pinion gears as part of your RC car maintenance schedule is essential for maintaining peak drivetrain performance and preventing catastrophic failures that could damage more expensive components like your motor or spur gear.

What's in the Box

• Traxxas 20-T Pinion Gear (32-pitch) — Hardened steel pinion gear ready for immediate installation

Frequently Asked Questions

• What Traxxas RC cars is the 20-T pinion gear compatible with? — This 32-pitch pinion gear is compatible with the Traxxas Mini Maxx BL-2S (available in green, blue, black, and orange variants), Traxxas Rustler Ultimate VXL 4x4 1:10 brushless models (blue and green), Traxxas TRX-4 2021 Ford Bronco 1/10 crawler (red, white, orange, and black), and Traxxas TRX-4 Defender 4WD RTR (red, silver, green, and sand). Always verify your specific model number before ordering to ensure compatibility.
• Is this a genuine Traxxas component or an aftermarket substitute? — This is a genuine Traxxas OEM part manufactured to the exact specifications established by Traxxas engineering. It carries the official Traxxas part number TRX3950X and the manufacturer's EAN code 020334395092, guaranteeing authenticity and perfect compatibility with your vehicle.
• What is the difference between a 20-tooth and 19-tooth pinion gear? — The 20-tooth configuration in this set provides slightly lower top speed compared to a 19-tooth gear, but delivers better acceleration and increased torque response. Conversely, the 19-tooth alternative (TRX3949X) favours higher top speed at the expense of acceleration. Your choice should depend on whether you prioritise acceleration for racing, or top speed for high-speed running.
• How often should I replace my RC car's pinion gear? — Pinion gear replacement frequency depends on usage intensity, running conditions, and maintenance practices. Regular bashers running on sandy or muddy terrain should inspect their pinion gear every 10-15 hours of running time and replace if teeth show visible wear or damage. Competitive racers maintaining their vehicles meticulously might extend this to 20-30 hours. Always inspect after crashes or high-impact incidents, as tooth stripping can occur suddenly if the gear is damaged.
• Do I need any special tools to install this pinion gear? — Installation requires basic RC car maintenance knowledge and standard tools including an appropriate wrench or hex key to remove your motor's end bell or shaft collar. Most Traxxas vehicles are designed for straightforward drivetrain access, and the 3.2mm bore slides directly onto your compatible motor shaft. Refer to your specific vehicle's assembly guide for detailed installation instructions.
• Will this pinion gear work with aftermarket brushless motors? — Compatibility depends on the motor shaft size and your vehicle's spur gear specification. The 3.2mm bore is designed for standard Traxxas motor shafts. If you've upgraded to an aftermarket motor, verify that its shaft diameter matches 3.2mm and that the spur gear remains 32-pitch before ordering.
• Is this suitable for brushless or brushed motor systems? — The Traxxas 20-T Pinion Gear (32-pitch) Set is compatible with both brushless and brushed motor systems in compatible vehicle models. The hardened steel construction is particularly well-suited to the high-RPM characteristics of brushless motors, providing the durability needed to handle their increased torque output.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas 20-T Pinion Gear (32-pitch) Set TRX3950X today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.