Cylinder Head Gasket Set

Specifications: Final Application: Fits: Cub, Cub LoBoy, 154, 184, 185 (All using late retainer IHS4357) Replacement Number: 251378R92, 360662R91, 364692R91, 364861R91 Notes: For all models using later retainer. Must be used w/ late 251363R2 rear seal retainer (IHS4357), will not fit tight in early 251363R1 retainer. For engines w/ the early R1 retainer, you must either change to the late R2 retainer or use Loctite 660 or something similar to retain seal into the R1 retainer. Early R1 retainer has bore size of 3.881", late R2 retainer has a bore size of 3.876", seal has an O.D. of 3.881".