Mugen MRX-5 One-piece Brass Engine Mount by Arrowmax AM-MRX5-H0772-V3  [AM-MRX5-H0772-V3]

One-piece brass engine mount for MRX-5

The Arrowmax AM-MRX5-H0772-V3 is an updated V3 one-piece engine mount designed for the Mugen MRX-5 chassis. Machined from a single piece of brass, the mount replaces multi-piece assemblies with a single solid unit to reduce movement at the engine mounting interface.

This V3 version adds two additional engine mounting points compared with the original release, increasing the points of contact between engine and chassis to help maintain alignment under load. The rear plate end has also been cosmetically altered to match the revised mounting geometry while keeping fitment consistent with MRX-5 engine positions.

Installation notes: the part is intended as a direct replacement mount for MRX-5 installations that use the same mounting footprint, and should be fitted using the existing chassis mounting hardware and engine fasteners. During installation check alignment and fastener torque as part of routine setup to ensure even clamping across the mount.

Tuning role: as a solid brass one-piece, the mount increases mass at the engine mounting area, which can change vibration characteristics and how power transfers into the chassis. Builders commonly use this kind of part to achieve a firmer engine seat and more consistent engine positioning for repeatable tuning and setup.

For MRX-5 users seeking a heavier, single-piece brass mounting option, the AM-MRX5-H0772-V3 provides added mounting points and a revised rear plate profile to improve engine seating and alignment during competitive setup and tuning.