This is a replacement O.S. Engines crankshaft.
NOTE: This part may be compatible with other O.S. engines. Please check your owner's manual or the O.S. Engines website to cross reference the part number to verify that this is the correct part for your engine.
NOTE: This Part Is Compatible With The Following O.S. Engines
| 91SZ-H Ringed
|| 91RZ-H DH