ARRMA Gorgon differential case & idler gear MGO1200A - direct-fit by GPM  [MGO1200A]

ARRMA GORGON MEGA Hard Anodized 7075 Alloy Differential Case And Idler Gear set (47/29T/0.8m) - GPM MGO1200A
Price:
£24.03
Brand:
GPM
Model:
MGO1200A
Condition:
Brand New
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Precision alloy diff case and idler gear for ARRMA

This aftermarket unit is supplied as a differential case and idler gear assembly intended to replace ARRMA part ARA311095 on ARRMA 1/10 monster and stadium platforms. The kit is CNC-machined from 7075-T6 aluminium with a hard anodized finish to limit wear and preserve reliable gear engagement under hobby use. It fits where the factory mounting interfaces and 0.8M gear pitch are present.

The product is aimed at restoring gearbox durability and ensuring repeatable engagement rather than modifying final drive ratios. In practical application it reduces wear in demanding running and provides a steadier platform for suspension and drivetrain set-up changes. Assemble using the vehicle's differential layout and the supplied bearings and fasteners; the unit is listed under model MGO1200A for service reference.

What is included

  • Diff Case And Idler Gear Set (47/29T, 0.8M) - 2pcs
  • Bearing 6x15x5 - 2pcs
  • Bearing 12x18x4 - 2pcs
  • Grade 12.9 black Flat Head Screws 3x8 - 4pcs

Original Name / Part No:

ARA311095

Compatible Models

  • ARRMA 1/10 Gorgon 4X2 Mega 550 Brushed Monster Truck RTR-ARA3230S
  • ARRMA 1/10 Gorgon 2WD RTA Kit Brushed Monster Truck-ARA3230SK
  • ARRMA 1/10 Gorgon 4X2 Mega 550 Brushed Monster Truck RTR-ARA3230
  • ARRMA 1/10 Vorteks 2WD Stadium Truck RTR-ARA3205
  • ARRMA 1/10 Vorteks 2WD RTR Brushed Stadium Truck-ARA3205S
  • ARRMA 1/10 Fury Mega 550 2WD Short Course Truck RTR-ARA3221
  • ARRMA 1/10 Fury 2WD RTR Brushed Short Course Truck-ARA3221S
  • ARRMA 1/10 Quake 223S DSC 2WD RTR Brushless Monster Truck-ARA3537
  • ARRMA 1/10 Fury 223S DSC 2WD RTR Brushless Short Course Truck-ARA3521
  • ARRMA 1/10 Vorteks 223S DSC 2WD RTR Brushless Stadium Truck-ARA3505
  • ARRMA 1/10 Freedom Flyer 223S 2WD RTR Brushless Monster Truck-ARA3530S
  • ARRMA 1/10 Gorgon 223S 2WD RTR Brushless Monster Truck-ARA3530

Owners of ARRMA Gorgon and similar 1/10 chassis can replace worn factory units with MGO1200A, a 7075-T6 alloy diff case and idler gear set designed to restore stability and durability; observe the vehicle manual for correct torque and assembly sequencing during installation.

Will this unit fit my listed ARRMA model straight away?

Yes, it is manufactured to match the factory interfaces for part ARA311095 and should install without modification on the listed ARRMA models using the same 0.8M pitch.

Does the anodize affect bearing fit or assembly?

The hard anodize is a surface treatment and does not change bearing bores; fit bearings as specified and verify smooth rotation during assembly.

Are the gear dimensions identical to the OEM item?

The gear tooth counts and 0.8M pitch match the original design, so geometry and ratios remain the same for maintenance use.

Can this part improve longevity under heavy use?

The stronger 7075-T6 alloy combined with hard anodize helps reduce progressive wear, which can extend service intervals in demanding driving conditions.

How should I reference the part when ordering?

Use model code MGO1200A to ensure you receive the correct 7075-T6 differential case and idler gear replacement for ARRMA 1/10 platforms.

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