EngineREF NO1 *1 *2 7300919ASM3 1936228SM4 1917356SM5 1732259SM6 1731214SM7 1960295SM8 1927557SM9 1667812SM10 7300917SM11 1667811SM12 1921977SM13 1732273SM14 1921221SM15 7300918ASM16 1960720SM18 2832747SM19 1726498SM20 2828635SM21 7101716SM22 1720463SM23 1717664SM24 1708264SM25 1918199SM26 7027266SM27 1732885ASM28 1919326SM29 1733063SM30 1675044SM32 1924940SM33 7101717SM35 7102139SM41 1734180ASM42 1921332SM43 7100416SM44 7090390SM45 7091630SM46 7075449SM47 7090999SM48 7091195SM49 7100529SM50 1734984SM51 2860112SMGroup - 21HP Briggs & StrattonPART NO. QTY. DESCRIPTIONZTS 7500 -107.26786 & 107.287861 ENGINE, 21 tiP B&S Intek, 49 State (Model - 33M777, Type - 0111, Trim - B1 )1 ENGINE, 21HP B&S Intek, California (Model - 33M777, Type - 0111, Trim - El)1 HEAT SHIELD, Inner2 CAPSCREW, Hex Head, 5/16-18 x 3/4, G82 LOCKWASHER, Spring, 5/161 PIPE ASSEMBLY, Exhaust1 GASKET, Exhaust4 SCREW, Hex Whiz Lock Flange, 1/4-20 x 5/84 NUT, Hex Whiz Lock Flange, 5/16-181 SPACER1 BRACKET, Muffler/Heat Shield1 SPACER, .390 ID x .90D x .34 LG, Powdered Metal1 CAPSCREW, Hex Head, 5/16-18 x 1-1/4, G51 MUFFLER ASSEMBLY, Single1 CAPSCREW, Hex Head, 5/16-18 x 1-1/2, G51 HEAT SHIELD, Outer Single4 CAPSCREW, Thread Cutting, # 10 x 1/22 TIE, Self Locking, 3-5/8 LG1 HOSE, Oil Drain, 16-1/2 LG3 SCREW, Hex Washer Head Taptite, 3t8-16 x 1-1/41 PULLEY ASSEMBLY, Engine1 KEY, Hi-Pro, 1/4 x 2-1/21 CLUTCH, Electric1 WASHER, Hex, .453 ID x 1-1/21 LOCKWSHER, Spring, .4381 CAPSCREW, Hex Head, 7/16-20 x 2-3/4, G51 HEAT SHIELD2 WASHER, 5/16, .34 ID x 3t40D x .06 THK1 HEAT SHIELD2 RIVET, Pop1 WASHER, 3/8, .41 ID x .87 OD x .08 THK1 RETAINER, Clutch1 SEAL, Foam Air Duct, 1 x 2-1/2, 12" LG1 AIR DUCT, Inlet1 CAPSCREW, Hex Head, 5/16-18 x 3/4, G51 CABLE, Choke1 WASHER, Lock Internal Tooth, 3/81 NUT, Hex, 3/81 CONTROL, Throttle2 SCREW, Pan Head Taptite Torx, 1/4-20 x 5/81 SCREW, Pan Head Taptite Combo, 310-16 x 3141 KNOB, Throttle1 HOSE, Fuel, 19.5" (See Frame, Body & Seat Group for fuel tank assembly.)2 CLAMP, HoseFootnotesNote * See Briggs & Stratton Engine Repair Parts.PTS - 7