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

Machined one-piece brass mount for the MRX-5

The Arrowmax AM-MRX5-H0772-V3 is the V3 one-piece engine mount designed for use with the Mugen MRX-5 chassis. Machined from a single block of brass, the mount replaces multi-piece assemblies to reduce play where the engine attaches to the chassis.

The V3 update introduces two additional engine mounting points over the original design, increasing contact between engine and mount to help preserve alignment under high loads. The rear plate end has been reshaped to match the updated mounting layout while maintaining MRX-5 compatibility.

Fitment advice: this component is intended as a direct replacement for MRX-5 layouts that share the standard mounting footprint and should be installed using the existing chassis and engine hardware. As with any mount install, check alignment and torque to ensure uniform clamping.

Tuning note: being a substantial brass one-piece, the mount adds mass at the engine area which can modify vibration characteristics and the way power is transferred through the chassis. Model racers commonly use this part to achieve a firmer engine seat and repeatable positioning for setup work.

For MRX-5 tuners seeking a denser single-piece brass option, the AM-MRX5-H0772-V3 delivers extra mounting points and a rear plate revision to support consistent engine seating during setup and racing.