Stock Number Mfr Number Product Description Optional  OSMG7487  28117000  O.S. Piston Pin Retainer .81 VR-M    OSMG3068  29031009  O.S. Front Bearing .90-300    OSMG8988  45061202  O.S. Tappet Screw F40-300    OSMG3212  45231100  O.S. Camshaft Bearing F 40-120    OSMG4411  45501050  O.S. Crankcase FS 1.20 III    OSMG3170  45501130  O.S. Cam Cover FS-120 III    OSMG4705  45502030  O.S. Crankshaft FS-120 III    OSMG5372  45503100  O.S. Cylinder Liner 1.20/2.40    OSMG7580  45503210  O.S. Piston FS-120    OSMG7825  45503410  O.S. Piston Ring FS-120 III    OSMG5237  45504030  O.S. Cylinder Head Assembly FS-120 III    OSMG5139  45504130  O.S. Cylinder Head FS-120 Surpass III    OSMG8447  45504230  O.S. Rocker Cover FS-120 III    OSMG4018  45505020  O.S. Connecting Rod FS-120 SP    OSMG7748  45506010  O.S. Piston Pin FS-120    OSMG4152  45507030  O.S. Cover Plate FS-120 III    OSMG5618  45508030  O.S. Drive Washer FS-120 II    OSMG9372  45508200  O.S. Woodruff Key 1.20-2.40    OSMG8817  45513010  O.S. Screw Set FS-120 Surpass    OSMG6199  45514030  O.S. Gasket Set FS-1.20 II    OSMG9134  45520000  O.S. Thrust Washer 120 Surpass    OSMG2859  45525030  O.S. Muffler FS-120    OSMG6783  45525031  O.S. Muffler Body F-5020    OSMG5754  45526030  O.S. Exhaust Pipe Assembly FS-120 III    OSMG5754  45526030  O.S. Exhaust Pipe Assembly FS-120 III    OSMG5777  45526032  O.S. Exhaust Pipe Nut FS-120 III    OSMG5688  45526200  O.S. Exhaust Joint 1.20 Surpass Optional  OSMG3074  45530030  O.S. Rear Bearing FS 1.20 III    OSMG9222  45560030  O.S. Valve Assembly Intake FS-120 Surpass    OSMG9223  45560040  O.S. Valve Assembly Exhaust FS-120 Surpass    OSMG9197  45560130  O.S. Valve Intake FS-120 Surpass    OSMG9198  45560140  O.S. Valve Exhaust FS-120 Surpass    OSMG9246  45560210  O.S. Valve Spring Intake FS-120 Surpass    OSMG9247  45560220  O.S. Valve Spring Exhaust FS-120 Surpass    OSMG9230  45560310  O.S. Valve Spring Retainer 1.20 Surpass    OSMG9226  45560410  O.S. Valve Collet FS-120 Surpass    OSMG8365  45561010  O.S. Rocker Arm Assy 1.20/3.00    OSMG8421  45561110  O.S. Rocker Arm 120/300    OSMG8403  45561401  O.S. Rocker Arm Support Assy 120 Surpass    OSMG3259  45562030  O.S. Camshaft FS-120 II    OSMG3196  45564000  O.S. Cam Follower .91-300    OSMG8104  45566000  O.S. Pushrod 1.20-2.40    OSMG7449  45566101  O.S. Pushrod Cover Assembly 1.20 Surpass    OSMG7417  45566111  O.S. Pushrod Cover 120 Surpass    OSMG7377  45566310  O.S. O-Ring PRC 1.20 Surpass    OSMG6490  45569030  O.S. Intake Manifold Assembly FS-1.20 III    OSMG6485  45569031  O.S. Intake Manifold FS-1.20 II    OSMG7088  45581970  O.S. Needle #7M/#7LFS    OSMG2537  45582000  O.S. Carburetor #70C    OSMG8376  45761600  O.S. Rocker Arm Retainer FS-20-240    OSMG3152  45771000  O.S. Breather Nipple FS-20/40    OSMG6687  45910100  O.S. Lock Nut Set FS-91 Surpass    OSMG2692  71615009  O.S. Type F Glow Plug 4-Stroke Medium    OSMG2678  72108510  O.S. 1414A Flex 1.20 Surpass III Optional  OSMG2679  72108520  O.S. 1414B Flex 1.20 Surpass III Optional  OSMG6334  72200060  O.S. 4-Stroke Valve Adjustment Kit Optional  OSMG2230  72508001  O.S. Pump Unit PD-07