Mugen MRX5 2nd Gear Mounting Housing 7075-T6 by Arrowmax AM-MRX5-H0289  [AM-MRX5-H0289]

Arrowmax AM-MRX5-H0289 Housing For 2nd. Gear (7075-T6)
Price:
£8.01
Brand:
Arrowmax
Model:
AM-MRX5-H0289
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MRX5 2nd Gear Mount Housing

This aluminium housing replaces the factory second gear housing on the Mugen MRX5 with a precision-machined 7075-T6 unit. The Arrowmax AM-MRX5-H0289 offers a more rigid mounting point around the second gear to help stabilise drivetrain components under load.

Installation follows standard MRX5 procedures: remove the existing housing, transfer any bearings, spacers or seals, then fit the aluminium housing using the MRX5 mounting bosses and original fixings. After fitting, verify gear mesh and shaft alignment to ensure quiet, efficient power transfer.

Considered a chassis-level hop-up, this housing reduces local compliance at the gearbox area which assists when tuning gear engagement, checking bearing play and refining drivetrain behaviour for consistent performance.

Can I use sealed bearings with this housing?

Yes, sealed bearings that match the MRX5 dimensions can be used; ensure they fit flush and rotate freely in the new aluminium bores.

Will this affect drivetrain friction?

When gears and bearings are aligned correctly you should not see increased friction; the stiffer mount can actually promote smoother gear contact when mesh is set properly.

Any maintenance tips after fitting?

Regularly inspect bearing seating and fastener torque after running, and recheck gear mesh after a few sessions to confirm nothing has settled or loosened.

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