ARRMA 18T 0.8mod 4x4 RC Pinion Gear - ARAC7877

The ARRMA AR310758 is an 18-tooth, 0.8 module pinion gear designed for ARRMA 4x4 electric RC models. Carrying style code ARAC7877, this pinion gear sits between the motor shaft and the drivetrain, and selecting the correct tooth count is critical for matching gearing to your terrain and motor setup. An 18T pinion at 0.8 mod is a common mid-range option that balances acceleration and top speed across a range of ARRMA 4x4 platforms.

Key Features

• 18-tooth pinion gear with 0.8 module pitch, matching the factory gear standard used across ARRMA 4x4 electric models
• Direct factory-spec replacement for worn or stripped pinion gears on compatible ARRMA vehicles
• 0.8 mod pitch must match the spur gear already fitted to your vehicle — confirm your current spur gear module before fitting
• Compact, precision-cut gear designed to maintain consistent mesh with the spur gear under load

Compatible With

• ARRMA 4x4 electric models specifying 0.8 module pinion gears
• Verify compatibility with your specific ARRMA model using the AR310758 part number before ordering

What's Included

• 1x ARRMA AR310758 18T 0.8 Mod Pinion Gear