ARRMA AR311112 55T 0.8Mod Spur Gear Infraction 1/8 MEGA ARA311112

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The ARRMA AR311112 55T 0.8Mod spur gear is a genuine composite replacement drivetrain gear for compatible ARRMA Infraction 1/8 4X4 MEGA vehicles, helping restore smooth power transfer through the slipper clutch assembly.

This replacement spur gear is precision manufactured with a durable 0.8 module tooth profile for consistent gear mesh and reliable drivetrain operation. It is designed for use with a single castellated slipper pad, making it a useful spare when replacing a stripped, worn or damaged spur gear in compatible ARRMA models.

Features

  • Genuine ARRMA Replacement Part: Designed as a factory replacement spur gear for compatible ARRMA vehicles
  • 55T Gear Count: Matches the specified 55 tooth spur gear setup for supported applications
  • 0.8Mod Tooth Profile: Durable 0.8 module gear profile suits compatible ARRMA drivetrain systems
  • Tough Moulded Composite: Hard-wearing material provides reliable performance in regular RC use
  • Precision Manufactured Teeth: Helps deliver smooth and consistent drivetrain operation when correctly installed
  • Castellated Slipper Pad Design: Designed for use with a single castellated slipper pad for dependable slipper engagement
  • Infraction MEGA Fitment: Suits compatible ARRMA Infraction 1/8 4X4 MEGA vehicles where ARA311112 is listed in the manual

Specifications

  • Brand: ARRMA
  • Part Number: AR311112
  • SKU: ARA311112
  • Product Type: Spur gear
  • Vehicle Compatibility: ARRMA Infraction 1/8 4X4 MEGA models where ARA311112 is listed
  • Tooth Count: 55T
  • Gear Pitch: 0.8Mod
  • Material: Moulded composite
  • Slipper Pad Type: Designed for use with a single castellated slipper pad
  • Required Related Part: ARRMA ARA310994 slipper pad set
  • Quantity: 1 spur gear
  • Intended Use: Replacement drivetrain repair and maintenance part for compatible ARRMA RC vehicles

Includes

  • 1 x ARRMA 55T 0.8Mod spur gear

FAQ

Does this spur gear fit the ARRMA Infraction MEGA? Yes. ARRMA ARA311112 is listed for compatible ARRMA Infraction 1/8 4X4 MEGA vehicles where this part number appears in the vehicle manual.

What slipper pads are required? This spur gear is designed to be used with ARRMA ARA310994 slipper pads, which are required separately unless already installed in the vehicle.

When should a spur gear be replaced? Replace the spur gear if the teeth are stripped, rounded, noisy under load or damaged from incorrect gear mesh, impact or slipper clutch wear.

Is this a metal spur gear? No. ARRMA ARA311112 is made from tough moulded composite material.

Important Notes

  • Check your ARRMA vehicle manual to confirm ARA311112 or AR311112 is the correct replacement part before ordering.
  • ARRMA ARA310994 slipper pads are required separately unless already fitted.
  • This listing includes the spur gear only.
  • Slipper pads, slipper hub, bearings, motor pinion and other drivetrain hardware are not included unless listed separately.
  • Set gear mesh correctly after installation to reduce noise, heat and premature gear wear.
  • Inspect the slipper clutch assembly during installation, as worn slipper parts can damage a new spur gear.