GPM MGG057TS 57T 0.5Mod Carbon Steel Spur Gear - Technical Replacement  [MGG057TS]

ARRMA GRANITE GROM MEGA 40cr Carbon Steel Spur Gear 0.5 Module 57 Tooth - GPM MGG057TS
Price:
USD$13.90
Brand:
GPM
Model:
MGG057TS
GTIN:
4894538411669
Condition:
Brand New
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Technical replacement spur for small-scale ARRMA gearboxes

The GPM MGG057TS is a 0.5 module 57-tooth spur produced from 40Cr carbon steel, intended as a service or tuning replacement for small-scale electric trucks and buggies. The 0.5Mod tooth form meshes with standard small-scale pinions and is suitable for restoring correct mesh, modifying gear ratios for tuning, or replacing worn factory parts (in some ARRMA kits this replaces a 59T factory spur).

Installation procedure: set spur-to-pinion mesh to recommended clearance, verify backlash within established RC practice, and ensure the spur seats fully on the gearbox shaft. After assembly, rotate the drivetrain manually to confirm free rotation and re-check mesh under no-load conditions before operational testing.

Packing includes

  • Spur Gear 0.5 module 57 tooth - 1pcs

Original Name / Part No:

ARA311196

Compatible Models

  • ARRMA 1/18 4WD GRANITE GROM MEGA 380 BRUSHED 4X4 MONSTER TRUCK-ARA2102
  • ARRMA 1/14 TYPHON GROM MEGA 380 BRUSHED 4X4 SMALL SCALE BUGGY RTR-ARA2106
  • ARRMA 1/14 TYPHON GROM 223S DSC 4X4 RTR BRUSHLESS BUGGY-ARA2306S
  • ARRMA 1/14 TYPHON GROM 223S DSC 4X4 RTR BRUSHLESS BUGGY-ARA2306
  • ARRMA 1/16 MOJAVE GROM MEGA 380 BRUSHED 4X4 SMALL SCALE DESERT TRUCK RTR-ARA2104
  • ARRMA 1/16 MOJAVE GROM 223S DSC 4X4 RTR BRUSHLESS DESERT TRUCK-ARA2304
  • ARRMA 1/16 MOJAVE GROM 223S DSC 4X4 RTR BRUSHLESS DESERT TRUCK-ARA2304S
  • ARRMA 1/16 QUAKE GROM 4X4 RTR Brushed Monster Truck-ARA2137
  • ARRMA 1/16 GORGON GROM 4X4 RTR Brushed Monster Truck-ARA2130
  • LOSI 1/12 NASCAR RC Racecar Ryan Blaney No. 12 2024 Menards Ford Mustang 2S AWD RTR Brushed On-Road-LOS1122412
  • LOSI 1/12 NASCAR RC Racecar Chase Elliott No. 9 2024 NAPA Chevrolet ZL1 Camaro 2S AWD RTR Brushed On-Road-LOS1122409
  • LOSI 1/12 NASCAR RC Racecar Kyle Larson No. 5 2024 HendrickCars.com Chevrolet ZL1 Camaro 2S AWD RTR Brushed On-Road-LOS1122405
  • LOSI 1/12 NASCAR RC Racecar RCR No. 3 GM Goodwrench Chevrolet ZL1 2S AWD RTR Brushed On-Road-LOSF1122503
  • LOSI 1/12 NASCAR 2025 Kyle Larson No. 5 Valvoline-LOS1122505
  • LOSI 1/12 NASCAR RC Racecar Dale Earnhardt Jr. No. 8 Budweiser Chevrolet ZL1 2S AWD RTR Brushed On-Road-LOSF1122508
  • LOSI 1/12 NASCAR 2025 Ross Chastain No. 1 Busch Light-LOS1122501
  • LOSI 1/12 NASCAR 2025 Chase Elliott No. 9 NAPA-LOS1122509
  • LOSI 1/12 NASCAR 2025 Christopher Bell No. 20 DeWalt-LOS1122520
  • LOSI 1/12 NASCAR 2025 William Byron No. 24 Raptor-LOS1122524
  • LOSI 1/12 NASCAR 2025 Ryan Blaney No. 12 Advance Auto-LOS1122512
  • LOSI 1/12 NASCAR 2025 Joey Logano No. 22 Shell-LOS1122522

What pinion types are compatible with this 0.5Mod spur?

Compatible with standard 0.5Mod pinions specified for the listed ARRMA small-scale models. Confirm tooth engagement and backlash during trial assembly to ensure proper meshing.

Are there special torque or mounting considerations?

Use the original gearbox mounting hardware and torque settings. Ensure the spur is fully seated and any grub screws or retaining parts are tightened to prevent slippage while avoiding over-torque that can distort the gear seating.

How should I validate mesh after replacing the spur?

Set initial mesh with a thin shim or paper method, tighten mountings, then rotate the drivetrain and observe tooth contact across several rotations. Adjust as needed to achieve even contact without binding.