Mugen MRX-5 Spring Retaining Nut for Engine Mount - Arrowmax AM-MRX5-H0704  [AM-MRX5-H0704]

Compact spring nut for MRX-5 engines

This nut is offered as a replacement part for Mugen MRX-5 applications and is listed under Arrowmax AM-MRX5-H0704. Built as a small, precision fastener, the spring steel composition helps keep clamping force where frequent vibration or adjustments might loosen standard nuts.

Installation notes: designed to suit the engine mounting studs used on MRX-5 chassis, this nut serves to maintain preload on the mounting stud during running and routine maintenance. Confirm your stud thread and fit before fitting to avoid mismatches and change out the nut when signs of wear appear.

Workshop role: used in preventative maintenance and setup routines, this spring-steel nut reduces the chance of loosening during running and keeps engine alignment steady when making on-track adjustments. It does not affect engine output but supports a consistent mechanical interface.