- Brand: ARRMA
- Part Number: Z-ARA310921
- EAN: 5052127033244
- Component Type: Idler Gear
- Tooth Count: 19T
- Spare Part Classification: Drivetrain Spares
- Scale Compatibility: 1/5
- Compatible Models: ARRMA Outcast 4X4 8S BLX EXB Brushless Stunt Truck RTR (C-ARA5810V2T1), ARRMA Kraton 1/5
- Motor Type Compatibility: Brushless
Overview
The ARRMA Idler Gear, 19T Z-ARA310921 is an essential drivetrain spare part designed for ARRMA 1/5 scale RC models. This precision-engineered idler gear is a critical component in the transmission system of high-performance RC vehicles, ensuring smooth power delivery and optimal gear meshing. Whether you're a competitive racer, weekend basher, or an RC enthusiast looking to maintain your RC car UK setup, having quality replacement idler gears on hand is vital for keeping your vehicle running at peak performance.
Idler gears play a crucial role in the drivetrain architecture of modern brushless RC cars and trucks. They work to maintain proper spacing and alignment between the main drive gears, absorb shock loads, and help distribute power evenly throughout the transmission system. For owners of ARRMA vehicles—particularly the highly capable 1/5 scale Outcast 4X4 8S BLX and Kraton models—maintaining genuine replacement parts ensures reliability and longevity of your investment.
This 19-tooth idler gear is manufactured to ARRMA's exacting standards, delivering the precision fit and durability expected from an authorised RC spare part. If you've experienced wear, damage, or simply need a spare idler gear for your ready to run RC truck or buggy, this is the genuine replacement you need to keep your vehicle performing at its best.
Key Features
- Genuine ARRMA Component — This is an original manufacturer spare part, ensuring perfect compatibility and build quality that matches the engineering standards of your ARRMA RC vehicle. Using genuine parts protects your investment and maintains warranty coverage.
- 19-Tooth Configuration — The 19-tooth design is specifically engineered to work in harmony with ARRMA's drivetrain architecture, providing optimal gear ratios and power transmission characteristics for 1/5 scale brushless RC trucks and buggies.
- Drivetrain Spares Classification — As a dedicated drivetrain component, this idler gear is engineered to handle the high torque and rotational forces generated by brushless motors, ensuring long-lasting performance under demanding bashful and racing conditions.
- Drop-In Replacement — Designed as a direct replacement for worn or damaged idler gears, installation is straightforward for anyone with basic RC maintenance knowledge, making repair and maintenance of your RC car UK simple and cost-effective.
- Outcast 4X4 8S BLX Compatibility — Specifically compatible with the ARRMA Outcast 4X4 8S BLX EXB brushless stunt truck RTR, this gear ensures your vehicle maintains factory performance standards after replacement.
Technical Performance
The ARRMA Idler Gear 19T is manufactured using durable composite or metal materials engineered to withstand the extreme stresses inherent in high-performance RC vehicle operation. The 19-tooth count represents a specific gear ratio that works in conjunction with pinion gears and spur gears to create the overall drive ratios of ARRMA's 1/5 scale brushless RC trucks. This idler gear serves as a critical spacer and load distributor in the transmission assembly, absorbing rotational forces generated by brushless motors and helping to maintain precise gear mesh. The precision engineering ensures minimal backlash and maximum power transfer efficiency, which is essential for both competitive racing and recreational bashful driving. Whether you're running a brushless RC truck with 8S LiPo power or engaging in intense off-road driving, this drivetrain component has been engineered to handle sustained high-RPM operation and shock loads from impacts and rough terrain. Replacement of worn idler gears is one of the most common maintenance tasks for dedicated RC enthusiasts, and having genuine ARRMA replacement parts ensures your vehicle remains in optimal mechanical condition.
What's in the Box
- ARRMA Idler Gear 19T Z-ARA310921 — one replacement idler gear
Frequently Asked Questions
- What is an idler gear and why does my RC car need one? — An idler gear is a drivetrain component that maintains spacing and alignment between primary drive gears in your RC vehicle's transmission system. It absorbs shock loads, distributes power evenly, and helps protect your main gears from damage during bashful driving and racing. Without a properly functioning idler gear, your RC vehicle would experience rough power delivery, excessive wear on other drivetrain components, and potential transmission failure.
- How do I know if my idler gear needs replacing? — Signs of idler gear wear include grinding noises from the transmission, rough acceleration, or visible damage to the gear teeth. If you've impacted obstacles or consistently bash your RC truck or buggy, inspecting the idler gear regularly is recommended maintenance practice.
- Is this compatible with all ARRMA vehicles? — This 19-tooth idler gear is specifically engineered for ARRMA 1/5 scale models, particularly the Outcast 4X4 8S BLX EXB brushless stunt truck RTR. Always verify compatibility with your specific model before ordering, though this gear suits most modern ARRMA 1/5 scale brushless RC trucks and buggies.
- Can I fit this myself or do I need professional help? — Replacing an idler gear is a straightforward maintenance task that most RC enthusiasts can accomplish with basic tools and mechanical knowledge. If you're unfamiliar with RC vehicle maintenance, our team at RC Model Shop can provide guidance or recommend professional assembly services.
- What is the difference between this idler gear and others available? — This ARRMA Z-ARA310921 is a genuine original equipment manufacturer part, ensuring it meets ARRMA's engineering specifications precisely. Counterfeit or generic idler gears may not fit correctly or withstand the torque loads of brushless RC motors, making genuine parts the smart choice for reliability.
- How long should an idler gear last? — Idler gear longevity depends on driving intensity, maintenance practices, and operating conditions. Recreational bashers might replace gears annually, whilst competitive racers may require more frequent replacement. Regular maintenance and genuine replacement parts extend the lifespan of your entire drivetrain system.
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 ARRMA Idler Gear, 19T Z-ARA310921 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.
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
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