Briggs & Stratton 21A900 Series, Illustrated Parts List

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REF. PART REF. PART REF. PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
21A900
K Included in Engine Gasket Set − Ref. No. 358.
D Included in Carburetor Overhaul Kit − Ref. No. 121 or 121A.
z
Included in Carburetor Gasket Set − Ref. No. 977 or 977A.
Δ
Included in Valve Gasket Set − Ref. No. 1095.
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.
5069 − 11 Assemblies include all parts shown in frames. 02/07/2008
11
1 697377 Cylinder Assembly
2 399265 Kit − Bushing/Seal
(Magneto Side)
3 K 391086S Seal − Oil
(Magneto Side)
4 697106 Sump − Engine
(Used After Code Date
05100200).
−−−−−− Note −−−−−−
795940 Sump − Engine
(Used Before Code
Date 05100200).
Must Use Kit 795940,
Includes Sump And
Counterweight.
4A 697188 Sump − Engine
(Used After Code Date
05100200).
Used on Type No(s).
0101, 0105, 0115,
0119, 0121, 0122,
0129, 0156, 0157,
0165, 0172, 0173,
0176, 0178, 0179,
0180, 0186, 0187,
0188, 0189, 0190,
0191, 0192, 0195,
0197, 0198, 0199.
−−−−−− Note −−−−−−
795957 Sump − Engine
(Used Before Code
Date 05100200).
Used on Type No(s).
0101, 0105, 0115,
0119, 0121, 0122,
0129, 0156, 0157,
0165, 0172, 0173,
0176, 0178, 0179,
0180, 0186, 0187,
0188, 0189, 0190,
0191, 0192, 0195,
0197, 0198, 0199.
Must Use Kit 795957,
Includes Sump And
Counterweight.
5 792964 Head − Cylinder
7 K Δ 273280S Gasket − Cylinder Head
9 K 697109 Gasket − Breather
(Used Before Code
Date 07071900).
(After Date Code Use
Liquid Sealant
Reference 850)
10 697157 Screw
(Breather Assembly)
11 794683 Tube − Breather
(Used After Code Date
07071800).
−−−−−− Note −−−−−−
697113 Tube − Breather
(Used Before Code
Date 07071900).
12 K 697110 Gasket − Crankcase
(.015” Thick)
(Standard)
13 690360 Screw
(Cylinder Head)
14 790560 Stud
(Cylinder Head)
15 690946 Plug − Oil Drain
(3/8” Standard)
16A 697390 Crankshaft
20
K
791892 Seal − Oil
(PTO Side)
22 692125 Screw
(Crankcase
Cover/Sump)
23 693556 Flywheel
Used on Type No(s).
0115, 0137, 0157,
0192.
−−−−−− Note −−−−−−
693557 Flywheel
Used on Type No(s).
0145, 0147, 0150,
0159, 0176, 0191.
698281 Flywheel
Used on Type No(s).
0101, 0104, 0105,
0119, 0120, 0121,
0122, 0123, 0124,
0125, 0128, 0129,
0131, 0140, 0143,
0152, 0153, 0155,
0158, 0162, 0164,
0169, 0172, 0173,
0178, 0183, 0185,
0186, 0187.
698282 Flywheel
Used on Type No(s).
0113, 0133, 0154,
0156, 0165, 0167,
0179, 0180, 0189,
0195, 0197, 0198,
0199.
790924 Flywheel
Used on Type No(s).
0113, 0156, 0167.
23A 693555 Flywheel
(Rewind Starter)
Used on Type No(s).
0117, 0134, 0139,
0141, 0142, 0149,
0151, 0161, 0166,
0168, 0170, 0171,
0184, 0188, 0190.
−−−−−− Note −−−−−−
698283 Flywheel
(Rewind Starter)
Used on Type No(s).
0127, 0134, 0136,
0138, 0144.
24 222698S Key − Flywheel
25 792305 Piston Assembly
(Standard)
−−−−−− Note −−−−−−
792728 Piston
Assembly
(.020” Oversize)
26 792306 Ring Set
(Standard)
−−−−−− Note −−−−−−
792643 Ring Set
(.020” Oversize)
27 698469 Lock − Piston Pin
(Used After Code Date
02100300).
−−−−−− Note −−−−−−
698138 Lock − Piston
Pin
(Used Before Code
Date 02100400).
28 697099 Pin − Piston
29 791633 Rod − Connecting
(Standard)
−−−−−− Note −−−−−−
697262 Rod −
Connecting
(.020” Undersize)
(Used Before Code
Date 05040400).
32 791118 Screw
(Connecting Rod)
33 695760 Valve − Exhaust
34 695761 Valve − Intake
35 691279 Spring − Valve
(Intake)