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BRIGGS & STRATTON 4-CYCLE ENGINE
MODEL NUMBER 123K02-0258-E1
KEY
PART
KEY
PART
NO.
NO.
DESCRIPTION
NO.
NO.
DESCRIPTION
26
499425
Ring Set-Piston (Standard)
443
692523
Screw (Air Cleaner Primer Base)
499426
Ring Set-Piston (.010" Oversize)
445
491588
Filter-Air Cleaner Cartridge
499427
Ring Set-Piston (.020" Oversize)
455
691219
Cup-Flywheel
499428
Ring Set-Piston (.030" Oversize)
456
692299
Plate-Pawl Friction
27
691866
Lock-Piston Pin
459
281505
PawI-Ratchet
28
499423
Pin-Piston
505
231082
Nut (Governor Control Lever)
29
499424
Red-Connecting
523
495264
Dipstick
32
691664
Screw (Connecting Rod)
524
692296
• SeaI-DipstickTube
32A
695759
Screw (Connecting Rod)
525
495265
Tube-Dipstick
33
262651
Valve-Exhaust
529
691923
Grommet
34
262652
Valve-Intake
562
92613
Bolt (Governor Control Lever)
35
691270
Spring-Valve (Intake)
564
698589
Screw (Control Cover)
36
691270
Spring-Valve (Exhaust)
584
692342
Cover-Breather Passage
37
694086
Guard-Flywheel
585
691879
• Gasket-BreatherPassage
40
692194
Retainer-Valve
592
690800
Nut (Rewind Starter)
43
691997
Slinger-Governor/Oil
597
691696
Screw (Pawl Friction Plate)
45
690548
Tappet-Valve
601
95162
Clamp-Hose
46
691449
Camshaft
604
698588
Cover-Control
48
498829
Short Block (Replacement
608
497680
Starter-Rewind
Engine 125K02-0253)
613
691340
Screw (Muffler)
50
497465
Manifold-Intake
615
690340
Retainer-Governor
Shaft
51
272199
• Gasket-Intake
616
698801
Crank-Governor
54
691650
Screw (Intake Manifold)
617
270344 .OSSeaI-O Ring (Intake Manifold)
55
691421
Housing-Rewind Starter
621
692310
Switch-Stop
58
692259
Rope-Starter (Cut to Length)
633
691321
O$SeaI-Throttle Shaft
60
281434
Grip-Starter Rope
635
66538
Boot-Spark Plug
65
690837
Screw (Rewind Starter)
668
493823
• Spacer (Includes2)
78
691108
Screw (Flywheel Guard)
670
692294
Spacer-Fuel Tank
81
691740
Lock-Muffler Screw
684
690345
Screw (Breather Passage Cover)
95
691636
Screw (Throttle Valve)
689
691855
Spring-Friction
97
696565
Shaft-Throttle
718
690959
Pin-Locating
104
691242
OPin-FIoat Hinge
741
691830
Gear-Timing
117
498978
Jet-Main (Standard)
745
691648
Screw (Brake)
118
497466
Jet-Main (High Altitude)
842
691031
• SeaI-O Ring (DipstickTube)
121
498260
Kit-Carburetor Overhaul
847
692017
Assembly-Dipstick/Tube
125
498170
Carburetor
851
493880
Terminal-Spark Plug
127
694468
O Plug-Welch
868
697338
Seal-Valve
130
696564
Valve-Throttle
869
691155
Seat-Valve (Intake)
133
398187
Float-Carburetor
870
690380
Seat-Valve (Exhaust)
134
398188
OValve-Needle/Seat
871
262001
Bushing-Guide (Exhaust)
137
693981
OSGasket-Float Bowl
63709
Bushing-Guide (Intake)
146
690979
Key-Timing
921
698587
Cover-Blower Housing
159
691753
Bracket-Air Cleaner Primer
922
692135
Spring-Brake
163
272653
.QSGasket-Air Cleaner
923
695891
Brake
187
691050
Line-Fuel (Cut to Required Length)
957
397974
Cap-Fuel Tank
188
693399
Screw (Control Bracket)
966
496116
Base-Air Cleaner Primer
190
690940
Screw (Fuel Tank)
968
692298
Cover-Air Cleaner
202
691829
Link-Mechanical
Governor
969
691138
Screw (Blower Housing Cover)
209
690319
Spring-Governor
970
691669
Screw (Air Cleaner Primer Bracket)
222
692467
Bracket-Control
972
495224
Tank-Fuel
227
690783
Control Lever-Governor
975
493640
Bowl-Float
276
271716
OSSealingWasher
976
694395
Primer-Carburetor
287
690940
Screw (Dipstick Tube)
977
498261
Set-Carburetor Gasket
300
692038
Muffler
1019 494256
Kit-Label
304
695892
Housing-Blower
1036 697456
Label-Emissions
305
691108
Screw (Blower Housing)
1059 692311
Kit-Screw/Washer
306
690450
Shield-Cylinder
1210 498144
Assembly-Pulley/Spring
(Pulley)
307
690345
Screw (Oylinder Shield)
1211 498144
Assembly-Pulley/Spring(Spring)
332
690662
Nut (Flywheel)
333
802574
Armature-Magneto
RPMSeftings:
Low:1900-2100;
High:3000-3200
334
691061
Screw (Armature Magneto)
337
802592
Plug-Spark
Included in Engine Gasket Set, Key No. 358
356
692390
Wire-Stop
358
497316
Engine Gasket Set
O
Included in Carburetor Overhaul Kit, Key No. 121
363
19069
Flywheel Puller
365
692524
Screw (Carburetor)
:l:
Included in Carburetor Gasket Set, Key No. 977
383
89838
Wrench-Spark
Plug
404
690272
Washer (Governor Crank)
NOTE: All component dimensions given in U.S. inches
425
690670
Screw (Air Cleaner Cover)
1 inch = 25.4 mm
39
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