56SR-Compatible Regulator Body B - YS Engine YSS2037  [YSS2037]

Fitment and Function of Regulator Body B

Designed for 56SR-class regulator assemblies, this regulator body B is a replacement option compatible with the YS Engine YSS2037 product line.

Fit the replacement to recover correct seal faces and mounting alignment; inspect seals and linkage bearings, align the housing, and secure fasteners evenly to preserve internal clearance and avoid binding.

As the outer shell of the regulator assembly, the body ensures proper geometry for control linkages and helps prevent air or fuel leakage. Confirm the part matches your 56SR regulator components before fitting to ensure correct operation.