YS Engine YSS1037 Regulator Body B - Replacement Housing for 50ST Regulators  [YSS1037]

Service Housing: Regulator Body B (50ST)

This Regulator Body B is an aftermarket spare intended specifically for YS 50ST regulator assemblies and associated engine regulator mounts. It reinstates the external housing and mounting interface without modifying the regulator's internal calibration or performance characteristics.

Fitment is intended to be simple for model technicians: remove the existing housing, move any internal parts across if required, position the new housing on the regulator mounting points, and fasten using the original hardware. Typical hobby hex drivers are sufficient for the task; check mating faces and seals as you reassemble the unit.

Used as part of a maintenance routine, this replacement helps keep regulator mounting geometry consistent after wear or repair, aiding predictable adjustment and fault finding. Use only within model-scale applications and treat it as an RC engine spare component.