ARRMA 21T 0.8Mod Safe-D5 RC Pinion Gear - ARA311004

The ARRMA ARA311004 is a 21-tooth, 0.8 module pinion gear with a Safe-D5 bore, designed as a direct-fit replacement or gearing option for a wide range of ARRMA electric RC vehicles. The Safe-D5 interface uses a flat-faced design that eliminates the need for a grub screw to bear directly on the motor shaft, reducing shaft damage and making gear swaps cleaner and more reliable. If you're maintaining or re-gearing an ARRMA Kraton, Talion, Typhon, Senton, or Granite, this 21T pinion is a straightforward, manufacturer-specified part built to mesh with 0.8 mod spur gears.

Key Features

• 21-tooth count suits a mid-range gearing ratio across compatible ARRMA platforms
• 0.8 module pitch matches the standard spur gear spec used across the ARRMA V4 and current BLX/BLS drivetrain lineup
• Safe-D5 bore design secures to the motor shaft without cutting into it, preserving shaft condition over repeated installations
• Direct OEM replacement ensures correct mesh depth and gear alignment with the factory spur gear
• Works across multiple ARRMA vehicle lines, making it a useful spare to keep on hand if you run more than one ARRMA model

Compatible With

• ARRMA Kraton 4x4 V4 (ARA4302V4T1, ARA4302V4T2, ARA4302V4T3)
• ARRMA Kraton 6S V5 (ARA4303V4T1, ARA4303V4T2, ARA4303V4T3)
• ARRMA Talion 6S V4 (ARA4305V4T1, ARA4305V4T2, ARA4305V4T3)
• ARRMA Typhon 3S V4 (ARA4306V4T1, ARA4306V4T2, ARA4306V4T3, ARA4306V4T4)
• ARRMA Typhon 6S V4 (ARA4312V4T1, ARA4312V4T2, ARA4312V4T3)
• ARRMA Senton 3S V4 (ARA4315V4T1, ARA4315V4T2, ARA4315V4T3)
• ARRMA Granite 4x4 V3 (ARA4404T1, ARA4404T2)
• ARRMA Outcast 8S (ARA4408V2T3, ARA4408V2T4)
• ARRMA Outcast 6S (ARA4410V2T3, ARA4410V2T4)
• ARRMA Notorious 6S (ARA3505T1, ARA3505T2, ARA3505T3)

What's Included

• 1x ARRMA 21T 0.8Mod Safe-D5 Pinion Gear (ARA311004)