Mugen MTX-5 Engine Nut - Spring Steel Clamp by Arrowmax AM-MTX-H0704  [AM-MTX-H0704]

MTX-5 Engine Nut Replacement

This Arrowmax AM-MTX-H0704 engine nut is an aftermarket RC replacement part made for Mugen MTX-5 setups, formed from spring steel to preserve clamp force under vibration. It is intended to secure a nitro engine to the chassis flange and is supplied and described as an RC accessory only.

Fit and compatibility: the nut suits MTX-5 style engine mounts where a captive or mating nut is required, and is intended to mate with corresponding Mugen Seiki threaded interfaces. Check thread condition and the engine seating face before assembly to ensure proper alignment and fitment.

Installation and tuning role: fit the nut by aligning the engine flange then advancing until a firm preload is reached, finishing retention to your normal RC engine mounting practice. The spring steel helps retain clamping through thermal cycles and track vibration, aiding repeatable engine positioning during setup and tuning.