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

Arrowmax AM-MRX5-H0289 Housing For 2nd. Gear (7075-T6)
Price:
NZD$18.06
Brand:
Arrowmax
Model:
AM-MRX5-H0289
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Second Gear Housing Upgrade for MRX5

This aluminium second gear housing replaces the OEM plastic piece on the Mugen MRX5 and is precision-machined from 7075-T6 for improved rigidity. The Arrowmax AM-MRX5-H0289 provides a stronger mounting interface where the second gear sits, helping to minimise flex under load.

Installation follows the same basic steps as the stock unit: remove the original housing, transfer any bearings, seals or spacers, and refit the machined housing using the MRX5 mounting points and your existing hardware. Once fitted, double-check gear mesh and shaft alignment to avoid binding.

Viewed as a chassis-level upgrade, this part reduces local compliance around the gearbox and aids in evaluating gear engagement, bearing play and other drivetrain adjustments during setup and maintenance.

Is special preparation required before fitting?

Clean mating surfaces and inspect bearings before transfer. No special machining is needed, but verify bearing fit to the new aluminium bores.

Will this affect gear noise or wear?

With correct gear mesh it should reduce unwanted movement that can cause inconsistent contact patterns, which may lower noise and improve longevity when set up properly.

Can I use the same bearings and spacers?

Yes, reuse compatible bearings and spacers from the original housing. Ensure they seat flush and rotate freely in the new housing before completing the rebuild.

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