Traxxas 19-Tooth 32-Pitch Hardened Steel Pinion Gear TRX3949X

Overview

The Traxxas 19-T Pinion Gear (32-pitch) Set TRX3949X is an essential replacement and upgrade component for serious RC enthusiasts in the UK who demand reliability and performance from their RC cars. This heavy-duty, hardened steel pinion gear is engineered to deliver superior durability and consistent performance across a wide range of Traxxas RC vehicles, making it an indispensable spare part and performance upgrade for any RC car collection. Whether you're a competitive racer looking to fine-tune your RC car UK setup, a weekend basher pushing your vehicle to the limit, or a dedicated hobbyist maintaining your ready to run RC models, this pinion gear represents genuine Traxxas quality engineering.

Pinion gears are critical components in the drivetrain of any RC car, directly affecting acceleration, top speed, and overall performance characteristics. The 19-tooth configuration combined with 32-pitch specification makes this gear suitable for a diverse range of Traxxas models, from the popular Mini Slash BL-2S 4X4 brushless short course truck to the legendary Rustler Ultimate VXL 4x4 brushless platform and the highly capable TRX-4 2021 Ford Bronco 1/10 crawler. By choosing a genuine Traxxas pinion gear, you're investing in precision engineering that has been tested and proven across countless RC racing circuits and backyard bashers throughout the United Kingdom.

The hardened steel construction ensures that this pinion gear can withstand the punishment of high-speed acceleration, aggressive terrain bashing, and repeated engagement cycles without premature wear or tooth stripping. This makes it an ideal choice whether you're replacing a worn gear on your existing RC car or optimising your vehicle's performance characteristics by experimenting with different gear ratios to suit your driving style and terrain.

Key Features

• Heavy-Duty Hardened Steel Construction — The pinion gear is manufactured from hardened steel, which provides exceptional strength and durability compared to softer materials, ensuring it can handle the demands of high-torque brushless motors and aggressive driving without tooth damage or premature failure.
• 19-Tooth Configuration — The precisely machined 19-tooth design offers an optimal balance between acceleration and top speed, making this gear suitable for a wide variety of RC car models and driving conditions across different terrain types.
• 32-Pitch Specification — The 32-pitch standard ensures compatibility with a broad range of Traxxas spur gears and drivetrain components, making this pinion gear a versatile upgrade that works across multiple models in the Traxxas lineup without requiring extensive modifications.
• 3.2mm Bore Diameter — The precisely engineered 3.2mm bore ensures a secure and accurate fit on compatible RC car motor shafts, preventing slippage and ensuring reliable power transmission from your brushless motor directly to the drivetrain.
• Genuine Traxxas Engineering — As an official Traxxas component, this pinion gear meets the exact specifications and quality standards that Traxxas uses in their factory-built ready to run RC cars, guaranteeing genuine performance and reliability.
• Wide Model Compatibility — This pinion gear is specifically engineered to fit multiple popular Traxxas RC car models including the Mini Slash BL-2S 4X4 in various colours (pink, green, yellow, and orange), the Rustler Ultimate VXL 4x4 brushless (blue and green versions), and the TRX-4 2021 Ford Bronco 1/10 crawler (red, white, orange, and black variants).
• Easy Installation — The standardised mounting design allows straightforward installation on compatible models, making it simple to replace worn gears, upgrade your setup, or experiment with different gear ratios to optimise your RC car's performance characteristics.
• Performance Optimisation — By upgrading to a fresh, hardened steel pinion gear, you can restore lost performance to an aging RC vehicle or fine-tune your acceleration and speed characteristics by adjusting your gear ratio combination to match your specific driving preferences and terrain.

Technical Performance

The Traxxas 19-T Pinion Gear (32-pitch) represents meticulous engineering focused on delivering maximum performance and longevity in demanding RC applications. The hardened steel material selection is crucial for longevity and reliability, as soft metals would quickly wear down under the intense forces generated by modern brushless motors delivering consistent power through rapid acceleration cycles. The 32-pitch specification represents a standard gear ratio system widely used across the RC hobby, allowing this pinion to mesh precisely with compatible spur gears on your RC car's transmission. The 3.2mm bore diameter is precisely engineered to fit snugly on motor shafts, ensuring zero slippage during acceleration and deceleration, which is essential for maintaining consistent power delivery and predictable handling characteristics. The 19-tooth configuration strikes an excellent balance for general-purpose driving, offering reasonable acceleration without sacrificing top-end speed, making it suitable for mixed-condition driving whether you're tackling rough terrain, concrete car parks, or track racing. This gear is specifically validated for use with popular brushless RC platforms like the Mini Slash BL-2S 4X4 short course truck, the Rustler Ultimate VXL 4x4, and the TRX-4 2021 Ford Bronco 1/10 crawler, vehicles that demand reliable drivetrain components capable of handling the constant stress of brushless motor performance. Genuine Traxxas components like this pinion gear are manufactured to exacting tolerances and undergo rigorous quality control testing before leaving the factory, ensuring that when you install this gear in your RC car, you're receiving a component that will deliver thousands of reliable miles of high-performance driving.

What's in the Box

• Traxxas 19-T Pinion Gear 32-pitch (TRX3949X)

Frequently Asked Questions

• What is a pinion gear and why do I need to replace it? — The pinion gear is a critical drivetrain component that meshes with your RC car's spur gear to transfer power from the motor to the wheels. Over time, from normal wear and tear during high-speed driving, bashings, and repeated acceleration cycles, the teeth on the pinion can become worn, stripped, or damaged, causing performance loss, slipping, and unreliable power delivery. Replacing the pinion gear restores optimal drivetrain function and can even be used strategically to adjust your vehicle's gear ratio for different terrain or driving styles.
• Which RC cars is this 19-tooth pinion gear compatible with? — This pinion gear is specifically designed for the Traxxas Mini Slash BL-2S 4X4 RTR Short Course Truck (available in pink, green, yellow, and orange), the Traxxas Rustler Ultimate VXL 4x4 1/10 brushless (blue and green), and the Traxxas TRX-4 2021 Ford Bronco 1/10 Crawler (red, white, orange, and black versions). If you own any of these models, this is a direct replacement part.
• What does 32-pitch mean and why does it matter? — Pitch refers to the gear tooth spacing standard, with 32-pitch (also written 32DP) being a common standard used in RC cars. The 32-pitch specification ensures this pinion gear will mesh properly with compatible 32-pitch spur gears, which is critical for efficient power transmission, smooth engagement, and longevity of your drivetrain. Using incompatible pitch gears can cause poor meshing, excessive wear, and performance problems.
• Is the 3.2mm bore size correct for my motor? — The 3.2mm bore diameter is the standard size for most Traxxas brushless and brushed motors used in their main RC car models. However, verify your specific motor shaft diameter before purchasing. If you're unsure, contact our experienced team at RC Model Shop, and we'll help you confirm the correct size for your vehicle.
• Can I use different tooth counts to adjust performance? — Yes, one advantage of having a modular drivetrain is the ability to experiment with different pinion and spur gear combinations to fine-tune your RC car's characteristics. A lower-tooth pinion (like this 19-tooth) paired with a higher-tooth spur will increase acceleration but reduce top speed, while the opposite combination increases top speed at the cost of acceleration. This allows you to customise your RC car's performance for your specific driving preferences and terrain conditions.
• How do I install a pinion gear on my RC car? — Installation typically involves removing the motor assembly or accessing the motor shaft, sliding off the old pinion gear (usually held by a small clip or grub screw), cleaning the shaft, and sliding the new pinion into place before securing it with the appropriate fastener. Consult your vehicle's manual for specific installation procedures, and consider having an experienced RC enthusiast assist you if this is your first time replacing drivetrain components.
• Is this suitable for beginners? — Whilst this is a genuine replacement component ideal for maintaining your RC car, pinion gear replacement requires some mechanical knowledge and proper tools. If you're new to RC cars and need to replace a worn gear, we'd recommend either consulting your vehicle's manual, watching tutorial videos, or bringing your RC car to an experienced hobbyist who can assist with the installation.
• What's the difference between this hardened steel gear and standard plastic or softer metal gears? — Hardened steel gears offer significantly superior durability and longevity compared to plastic or softer metals, especially when paired with powerful brushless motors. Steel gears resist tooth stripping, wear down more slowly, and maintain precise tolerances longer, meaning fewer replacements over time and more consistent performance from your RC car.

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 19-T Pinion Gear (32-pitch) Set TRX3949X 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.