This high-quality Diff Cover Set provides an ideal replacement part for your ARRMA vehicle.
Features
- Tough composite material for long-lasting vehicle protection and increased impact resistance
- Precision manufactured for consistent fit and easy servicing
- Includes mounting hardware
Includes
1 x Front Diff Cover
1 x Rear Diff Cover
12 x M2.5 x 8mm Cap Head Screw
- Manufacturer: ARRMA
- Part Number: Z-ARA320749
- EAN: 5052127045681
- Spare Part Type: Chassis Spares
- Material: Tough composite
- Quantity: 2 pieces (1 front diff cover, 1 rear diff cover)
- Fastener Type: M2.5 x 8mm Cap Head Screw
- Fastener Quantity: 12
- Compatible Vehicle Scales: 1/14, 1/16, 1/18
- Compatible with ARRMA 1/16 GORGON GROM 4X4 RTR (Yellow, Red, Bronze)
- Compatible with ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 RTR (Blue/Red, Red, Green)
- Compatible with ARRMA 1/16 MOJAVE GROM 223S BLX 4X4 DT with Battery and Charger (Teal, White)
- Compatible with ARRMA 1/16 MOJAVE GROM 223S BLX 4X4 DT without Battery and Charger (Black)
- Compatible with ARRMA MOJAVE GROM MEGA 380 Brushed 4X4 Desert Truck RTR (Red, Blue)
- Compatible with ARRMA 1/16 MOJAVE GROM 4x4 RTA Race Kit
- Compatible with ARRMA 1/16 QUAKE GROM 4X4 RTR (Red, Green, Purple)
- Compatible with ARRMA 1/14 TYPHON GROM 223S BLX 4X4 with Battery and Charger (Red, Blue)
- Compatible with ARRMA 1/14 TYPHON GROM 223S BLX 4X4 without Battery and Charger (Silver)
- Compatible with ARRMA 1/14 TYPHON GROM MEGA 380 Brushed 4x4 Buggy RTR (Red/White, Blue/Silver)
- Features: Increased impact resistance, precision manufactured, consistent fit, easy servicing
- Includes: Mounting hardware
Overview
The ARRMA Diff Cover Set (2pcs) - GROM Z-ARA320749 is an essential replacement component for owners of ARRMA's compact and highly popular GROM range of RC vehicles. Whether you're running a 1/16 scale GORGON GROM, 1/18 GRANITE GROM, 1/16 MOJAVE GROM, or 1/14 TYPHON GROM monster truck, buggy or desert truck, this genuine OEM spare part set provides critical protection for your differential assembly. This is the perfect upgrade or replacement part for any serious RC enthusiast in the UK who wants to maintain their ARRMA RC car in peak condition.
Differential covers are a crucial component in any RC vehicle, serving as protective shields for the delicate differential gearing and internal mechanisms that allow your 4WD or 4x4 RC truck to distribute power efficiently to all four wheels. Over time, through aggressive bashing, racing, or general wear and tear, original diff covers can crack, warp, or become damaged. The ARRMA Diff Cover Set offers a reliable, precision-manufactured solution that brings your GROM model back to factory specifications. This is an ideal purchase for weekend bashers, competition racers, or anyone looking to keep their RC monster truck or buggy performing at its best.
Built to ARRMA's exacting standards, this diff cover set is engineered for durability and consistency, ensuring that your vehicle maintains its structural integrity and performance characteristics. Whether you've damaged your existing covers during an intense off-road session or you're simply looking to upgrade with fresh components, this is the genuine spare part you need.
Key Features
- Tough Composite Material — Manufactured from durable composite engineering plastics, these diff covers provide long-lasting vehicle protection and significantly increased impact resistance compared to standard plastic alternatives, meaning your RC car can withstand the rigours of outdoor bashing and racing without premature failure.
- Precision Manufacturing — Each diff cover is precision manufactured to exacting tolerances, ensuring a consistent, perfect fit with your ARRMA GROM chassis, which makes servicing and maintenance of your differential gearing straightforward and hassle-free without any modification required.
- Complete Two-Piece Set — This set includes both the front and rear differential covers, giving you complete coverage and protection for your entire drivetrain, allowing you to replace worn or damaged covers at both ends of your 4WD RC vehicle in one purchase.
- Includes Mounting Hardware — The set thoughtfully includes all the necessary mounting fasteners (12 x M2.5 x 8mm cap head screws), meaning you have everything required to install the covers without needing to source additional hardware from other suppliers.
- OEM Quality and Compatibility — As a genuine ARRMA spare part manufactured to original equipment specifications, these covers are guaranteed to fit and function perfectly with all compatible GROM variants, delivering the same quality and reliability as the components your vehicle shipped with.
Technical Performance
The ARRMA Diff Cover Set is engineered using advanced composite materials that strike an optimal balance between weight savings, durability and impact resistance. The composite construction provides superior protection for the differential internals whilst maintaining the lightweight characteristics essential for high-performance RC vehicles. The precision manufacturing process ensures that each cover seats perfectly within the GROM chassis without gaps, warping or misalignment that could compromise sealing or allow debris ingress. The M2.5 x 8mm cap head fasteners provide secure mounting and are sized appropriately for the compact 1/14 to 1/18 scale platforms that the GROM range encompasses. These covers are compatible with a wide range of GROM variants including brushed motor models (such as the 1/16 GORGON GROM 4X4 RTR Monster Truck and 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck), as well as brushless BLX variants (including the 1/16 MOJAVE GROM 223S BLX 4X4 Desert Truck and 1/14 TYPHON GROM 223S BLX 4X4 Buggy). The covers integrate seamlessly with both standard RTR configurations and race-spec kits, making them essential spares for any GROM owner serious about long-term vehicle maintenance.
What's in the Box
- 1 x Front Differential Cover
- 1 x Rear Differential Cover
- 12 x M2.5 x 8mm Cap Head Screw (mounting hardware)
Compatibility
The ARRMA Diff Cover Set Z-ARA320749 is compatible with the following GROM models:
- ARRMA 1/16 GORGON GROM 4X4 RTR Brushed Monster Truck (Yellow, Red, Bronze variants)
- ARRMA 1/18 GRANITE GROM MEGA 380 Brushed 4X4 Monster Truck RTR (Blue/Red, Red, Green variants)
- ARRMA 1/16 MOJAVE GROM 223S BLX 4X4 DT with Battery and Charger (Teal, White variants)
- ARRMA 1/16 MOJAVE GROM 223S BLX 4X4 DT without Battery and Charger (Black)
- ARRMA MOJAVE GROM MEGA 380 Brushed 4X4 Small Scale Desert Truck RTR (Red, Blue variants)
- ARRMA 1/16 MOJAVE GROM 4x4 RTA Race Kit (Battery and Charger Included)
- ARRMA 1/16 QUAKE GROM 4X4 RTR Brushed Monster Truck (Red, Green, Purple variants)
- ARRMA 1/14 TYPHON GROM 223S BLX 4X4 with Battery and Charger (Red, Blue variants)
- ARRMA 1/14 TYPHON GROM 223S BLX 4X4 Buggy without Battery and Charger (Silver)
- ARRMA 1/14 TYPHON GROM MEGA 380 Brushed 4x4 Buggy RTR (Red/White, Blue/Silver variants)
Frequently Asked Questions
- Are these diff covers genuine ARRMA spare parts? — Yes, the Z-ARA320749 is an official OEM spare part manufactured by ARRMA to their original specifications. When you purchase this set from RC Model Shop, you're receiving genuine components that will integrate perfectly with your GROM vehicle without any fitment issues or compatibility concerns.
- Which GROM models are compatible with this diff cover set? — This set is compatible with multiple GROM variants across different scales and powertrains, including the 1/16 GORGON GROM, 1/18 GRANITE GROM, 1/16 MOJAVE GROM, 1/16 QUAKE GROM, and 1/14 TYPHON GROM, in both brushed and brushless BLX configurations. Whether you're running an RTR or RTA model, this set will fit your vehicle. Check the compatibility section above for the complete list of compatible model codes.
- What is included in this differential cover set? — The set includes one front differential cover and one rear differential cover, providing complete protection for your drivetrain at both ends of the vehicle. Additionally, all necessary M2.5 x 8mm cap head screws (12 total) are included, so you have everything needed for installation without sourcing extra hardware.
- How often do I need to replace my diff covers? — Differential covers typically need replacement when they become visibly cracked, warped, or damaged through impacts or wear. Composite covers like these can deteriorate faster under extreme conditions or aggressive bashing. If you notice cracks, impact damage, or difficulty fitting the covers due to warping, replacement is recommended. Many serious RC racers keep spare covers on hand to minimise downtime.
- Are these covers better than aftermarket alternatives? — As genuine ARRMA OEM parts, these covers are manufactured to the exact specifications your GROM was designed with, guaranteeing perfect fitment and compatibility. Whilst aftermarket options may be available (such as aluminium alternatives from other manufacturers), the genuine ARRMA covers ensure you're using components your vehicle was engineered around, with consistent quality and reliability.
- Can I upgrade to aluminium diff covers? — Whilst this set offers composite covers as per ARRMA's original specification, some enthusiasts do upgrade to aftermarket aluminium differential covers (such as GPM Racing Aluminium 7075 options) for increased durability and weight savings. However, the OEM composite covers are the correct specification for optimal performance and fitment on your GROM.
- How difficult is installation? — Installation is straightforward for anyone with basic RC maintenance experience. The covers are held in place by the provided M2.5 x 8mm cap head screws and simply bolt onto your existing differential housing. No special tools are required beyond a small hex key, and most users can complete installation in under 15 minutes once they've drained and serviced the differential if necessary.
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 Diff Cover Set (2pcs) - GROM Z-ARA320749 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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