Craftsman 536.270321 Operator's Manual page 55

BRIGGS & STRATTON ENGINE
MODEL 21B807-0326-E1
REF. PART
NO. NO. DESCRIPTION
1 697377 Cylinder Assembly
2 399265 Kit−Bushing/Seal
(Magneto Side)
3 K391086s Seal−Oil
(Magneto Side)
4 697106 Sump−Engine
9 K697109 Gasket−Breather
10 697157 Screw
(Breather Assembly)
11 697113 Tube−Breather
12 K697110 Gasket−Crankcase
15 690946 Plug−Oil Drain
16 697390 Crankshaft
20 K690947 Seal−Oil
(PTO Side)
22 692125 Screw
(Crankcase Cover/
Sump)
24 222698s Key−Flywheel
400150
REF. PART
NO. NO. DESCRIPTION
25 792305 Piston Assembly
(Standard)
−−−−−−− Note −−−−−
792642 Piston Assembly
(.020" Oversize)
26 792306 Ring Set
(Standard)
−−−−−−− Note −−−−−
792643 Ring Set
(.020" Oversize)
27 698469 Lock−Piston Pin
28 697099 Pin−Piston
29 791633 Rod−Connecting
(Standard)
32 791118 Screw
(Connecting Rod)
43 691968 Slinger−Governor/Oil
45 690564 Tappet−Valve
46 790400 Camshaft
146 691639 Key−Timing
306 697359 Shield−Cylinder
55
REPAIR PARTS
REF. PART
NO. NO. DESCRIPTION
307 691003 Screw
(Cylinder Shield)
523 699908 Dipstick
524 K691032 Seal−Dipstick Tube
525 697184 Dipstick
552 697144 Bushing−Governor
Crank
584 697112 Cover−Breather
Passage
691 K692407 Seal−Governor Shaft
718 690959 Pin−Locating
741 697128 Gear−Timing
842 K691031 Seal−O Ring
(Dipstick Tube)
847 790442 Dipstick/Tube Assembly
757 697607 Link−Counterweight
758 697391 Counterweight
759 697392 Pin−Counterweight
1263 697124 Reed−Breather
1264 697104 Screw
(Breather Reed)
1270 697156 Plug−AVS Counterweight