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Briggs & Stratton Engine Model Number 128812–3112–D1
16
24
741
146
45
40
35
34
40
36
33
Key# Part#
Description
16
691455
Crankshaft
24
222698
Key–Flywheel
25
499429
Piston Assembly
(Standard)
––––––– Note –––––
499430
Piston Assembly
(.010" Oversize)
499431
Piston Assembly
(.020" Oversize)
499432
Piston Assembly
(.030" Oversize)
26
499425
Ring Set (Standard)
––––––– Note –––––
499426
Ring Set
(.010" Oversize)
499427
Ring Set
(.020" Oversize)
499428
Ring Set
(.030" Oversize)
27
691866
Lock–Piston Pin
28
499423
Pin–Piston (Standard)
★
Included in Engine Gasket Set–See Ref. No. 358.
✦
Included in Carburetor Overhaul Kit–See Ref. No. 121.
●
Included in Carburetor Gasket Set–See Ref. No. 977.
Assemblies include all parts shown in frames.
REPAIR PARTS
25
26
45
25- ENG
28
27
27
29
Key# Part#
Description
––––––– Note –––––
29
499424
Rod–Connecting
(Standard)
32
691664
Screw
(Connecting Rod)
32A
695759
Screw
(Connecting Rod)
33
262651
Valve–Exhaust
34
262652
Valve–Intake
35
691270
Spring–Valve (Intake)
36
691270
Spring–Valve
(Exhaust)
40
692194
Retainer–Valve
45
690548
Tappet–Valve
146
690979
Key–Timing
741
691830
Gear–Timing
32
32A
D28236