Overview
Protect and upgrade your Arrma Grom's front axle with the Hot Racing CNC 6061 Aluminum Front Differential Gear Cover. CNC-machined from solid 6061 aluminum and finished in a clean black anodized coating, this front diff cover is a direct replacement for the factory plastic component from ARA320749 — delivering a noticeable boost in strength, rigidity, and impact resistance.
The aluminum construction protects the front differential from rock strikes and debris impacts while also helping dissipate heat from the gears during sustained, high-load runs. A no-brainer upgrade for Grom owners who push their truck hard.
Key Features
- CNC-machined 6061 aluminum construction
- Black anodized finish for corrosion resistance
- Direct replacement for plastic front diff cover from ARA320749
- Stronger and more rigid than the stock plastic part
- Improved heat dissipation around the front diff
Performance Benefits
- Protects the front differential from rock and debris impacts
- Better heat management around the diff housing
- Greater rigidity reduces gear-mesh deflection under load
- Long-lasting durability — outlasts factory plastic indefinitely
Usage Notes
Apply blue removable thread-locking compound to fasteners during installation. Check diff oil level and inspect seals during install for a complete front axle refresh. Pair with the matching Hot Racing GRM12RC01 rear diff cover for a clean, complete look.
Technical Specs
- Material: CNC-machined 6061 aluminum
- Finish: Anodized black
- Function: Front differential gear cover
- Replaces: Plastic front diff cover from Arrma ARA320749
What's Included
- One (1) aluminum front differential gear cover
Fitment
- Arrma Grom (1/18 scale)
- Vehicles using ARA320749 plastic front differential cover
Summary
The Hot Racing CNC 6061 Aluminum Front Differential Gear Cover is one of the smartest small upgrades you can install on your Arrma Grom. Stronger, cooler, and better looking than stock plastic — bolt it on and drive harder with confidence.
