Mugen MRX5 Second Gear Aluminium Housing Upgrade - Arrowmax AM-MRX5-H0289  [AM-MRX5-H0289]

Arrowmax AM-MRX5-H0289 Housing For 2nd. Gear (7075-T6)
Price:
CAD$14.89
Brand:
Arrowmax
Model:
AM-MRX5-H0289
Please kindly input your name and email address, we will inform you once we have the restocking.
Or you may find similar product under the
category
Write a review

MRX5 Second Gear Aluminium Housing

This replacement second gear housing for the Mugen MRX5 offers a direct-fit aluminium alternative to the stock plastic unit. Machined from 7075-T6 aluminium, the Arrowmax AM-MRX5-H0289 reduces local flex around the second gear and gives a stiffer mounting location for drivetrain parts.

Fitting is straightforward for anyone used to MRX5 teardown: remove the factory housing, move across any bearings or spacers, then secure the new housing using the MRX5 mounting points and your original screws. After installation, recheck gear mesh and shaft alignment to ensure quiet, smooth operation.

As a chassis-level hop-up this housing lowers compliance in the gearbox area, which helps when setting gear engagement, checking bearing play, and fine tuning drivetrain behaviour during setup sessions.

Will this fit all MRX5 gearboxes?

It is made for the MRX5 second gear position; confirm your chassis uses the same housing layout before fitting to avoid compatibility issues.

Do I need extra hardware to install it?

No extra fasteners are normally required if you reuse the original MRX5 screws. Keep original bearings and spacers and verify they seat correctly in the new aluminium housing.

What performance change should I expect?

Expect a firmer gearbox mounting that reduces local flex and can make gear engagement feel more consistent, which is helpful during setup and while running on track.

Copyright © 2008-2026 rcjaz.ca All rights reserved