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BRIGGS & STRATTON 4-CYCLE ENGINE MODEL NUMBER 12S505-3856-B1
KEY PART KEY PART
NO. NO. DESCRIPTION NO. NO. DESCRIPTION
524 692296 • Seal-Dipstick Tube
525 495265 Tube-Dipstick
544 690786 Starter-Armature
545 492919 Washer Set
562 92613 Bolt
(Governor Control Lever)
584 697734 Cover-Breather Passage
585 691879 • Gasket-Breather Passage
592 690800 Nut (Rewind Starter)
597 691696 Screw (Pawl Friction Plate)
601 791850 Clamp-Hose
608 497680 Starter-Rewind
613 691108 Screw (Muffler)
613A 691140 Screw (Muffler)
615 690340 Retainer-Governor Shaft
616 698801 Crank-Governor
619 691108 Screw
(Cylinder Head Plate)
621 692310 Switch-Stop
633 691321 O:1:Seal-Throttle Shaft
635 66538s Boot-Spark Plug
651 690345 Screw (Starter Gear Cover)
670 692294 Spacer-Fuel Tank
684 690345 Screw
(Breather Passage Cover)
689 691855 Spring-Friction
697 691127 Screw (Starter Motor)
718 690959 Pin-Locating
741 790345 Gear-Timing
742 93941 Retainer-E Ring
745 691648 Screw (Brake)
783 691918 Gear-Pinion
783A 691269 Gear-Pinion
784 692341 Cover-Starter Gear
785 692352 Gasket-Starter Cover
789 696547 Harness-Wiring
801 690782 Cap-Drive
802 695267 Cap-End
803 695266 Housing-Starter
830 694544 Stud (Rocker Arm)
842 691031 • SeaI-O Ring
(Dipstick Tube)
847 692047 Assembly-Dipstick/Tu be
851 493880s Terminal-Spark Plug
868 692044 •+ Seal-Valve
883 691893 •+ Gasket-Exhaust
886 696268 Gasket Kit-
Cylinder Head/Plate
914 691108 Screw (Rocker Cover)
914A 691127 Screw (Rocker Cover)
921 691465 Cover-Blower Housing
922 692135 Spring-Brake
923 695891 Brake
935 398758 Switch-Interlock
937 691325 Spline-Starter
957 699985 Cap-Fuel Tank
966 690243 Base-Air Cleaner Primer
967 273356 Filter-Pre Cleaner
968 691342 Cover-Air Cleaner
969 691138 Screw
(Blower Housing Cover)
972 699374 Tank-Fuel
975 493640 Bowl-Float
976 694395 Primer-Carburetor
977 792385 Set-Carburetor Gasket
993 694088 •+ Gasket -
Cylinder Head Plate
1022 691890 •+ Gasket-Rocker Cover
1023 499624 Cover-Rocker Arm
1026 692045 Rod-Push
1029 691230 Arm-Rocker
1034 691343 Guide-Push Rod
1036 - - - Label-Emissions (Available
from an Authorized Briggs
& Stratton Service Dealer)
1058 MS3782 Operator's Manual
1059 692311 Kit-Screw/Washer
1095 792386 Set-Valve Gasket
1160 691627 Screw (Interlock Switch)
1210 498144 Assembly-Pulley/Spring
(Pulley)
1211 498144 Assembly-Pulley/Spring
(Spring)
1329 12S507-0062 Replacement Engine
(Replacement Engine listed
is not available in the State
of California. Repair with
individual parts.)
1330 272147 Repair Manual
- - 398067 Spark Arrester
(available accessory)
• Included in Engine Gasket Set,
Key Number 358
O Included in Carburetor Overhaul Kit,
Key Number 121
:1: Included in Carburetor Gasket Set,
Key Number 977
NOTE: All component dimensions given in U.S.
inches. 1 inch = 25.4 mm
50
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