ARRMA 17T 0.8Mod Safe-D5 RC Pinion Gear - ARA311000

The ARRMA ARA311000 17T 0.8Mod Safe-D5 pinion gear is a direct-fit drivetrain replacement for a wide range of ARRMA electric RC vehicles. The Safe-D5 interface uses a 5mm flat-sided bore design that locks the pinion securely onto the motor shaft without relying solely on a set screw, reducing the risk of the gear walking or spinning under load. If you're replacing a worn pinion or rebuilding your drivetrain, this is the correct spec part for compatible ARRMA models.

Key Features

• 17-tooth, 0.8 module pinion gear for precise mesh with standard ARRMA spur gears
• Safe-D5 bore design features a 5mm shaft with a flat, providing a more secure motor shaft connection than a round-bore pinion
• Direct OEM replacement — no modification needed for compatible ARRMA vehicles
• Suitable for brushless motor setups where the 17T gearing ratio is factory specified

Compatible With

• ARA3505T1, ARA3505T2, ARA3505T3
• ARA3521T1, ARA3521T2, ARA3521T3
• ARA3530T1, ARA3530T2
• ARA3537T1, ARA3537T2, ARA3537T3
• ARA4302V4T1, ARA4302V4T2, ARA4302V4T3
• ARA4303V4T1, ARA4303V4T2, ARA4303V4T3
• ARA4305V4T1, ARA4305V4T2, ARA4305V4T3
• ARA4306V4T1, ARA4306V4T2, ARA4306V4T3, ARA4306V4T4
• ARA4312V4T1, ARA4312V4T2, ARA4312V4T3
• ARA4315V4T1, ARA4315V4T2, ARA4315V4T3
• ARA4404T1, ARA4404T2
• ARA4408V2T3, ARA4408V2T4
• ARA4410V2T3, ARA4410V2T4

What's Included

• 1x ARRMA 17T 0.8Mod Safe-D5 pinion gear (ARA311000)