Not for

Reprod

uctio

n

COPYRIGHT by BRIGGS & STRATTON CORPORATIONAll rights reserved. No part of this material may be reproduced or transmitted,in any form or by any means, electronic or mechanical, including photocopying,recording or by any information storage and retrieval system, without permissionin writing from Briggs & Stratton Corporation.

PRINTED IN U.S.A.

FORM MS4094 REV R 12/14/2012REPLACES FORM MS4094 REV P 05/09/2012

FILE IN SECT. 2 OF SERVICE MANUAL

31N600

Illustrated Parts ListModel Series

31N600TYPE NUMBERS

0554, 0726, 0765, 0868, 1403, 3403.

TABLE OF CONTENTS

Air Cleaner 5. . . . . . . . . . . . . . . . . . . . . . . . .

Alternator 7. . . . . . . . . . . . . . . . . . . . . . . . . .

Blower Housing 5. . . . . . . . . . . . . . . . . . . .

Camshaft 2. . . . . . . . . . . . . . . . . . . . . . . . . .

Carburetor 4. . . . . . . . . . . . . . . . . . . . . . . . .

Controls 7. . . . . . . . . . . . . . . . . . . . . . . . . . .

Crankshaft 2. . . . . . . . . . . . . . . . . . . . . . . . .

Cylinder 2. . . . . . . . . . . . . . . . . . . . . . . . . . .

Cylinder Head 3. . . . . . . . . . . . . . . . . . . . . .

Electric Starter 7. . . . . . . . . . . . . . . . . . . . .

Engine Sump 2. . . . . . . . . . . . . . . . . . . . . . .

Flywheel 6. . . . . . . . . . . . . . . . . . . . . . . . . . .

Fuel Supply 5. . . . . . . . . . . . . . . . . . . . . . . .

Gasket Set--Engine 2. . . . . . . . . . . . . . . . .

Gasket Set--Valve 3. . . . . . . . . . . . . . . . . . .

Governor Spring 7. . . . . . . . . . . . . . . . . . . .

Ignition 7. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Intake Manifold 3. . . . . . . . . . . . . . . . . . . . .

Kit--Carburetor Overhaul 4. . . . . . . . . . . .

Lubrication 3. . . . . . . . . . . . . . . . . . . . . . . . .

Operator’s Manual 2. . . . . . . . . . . . . . . . . .

Piston, Rings, and Connecting Rod 2. .

Valves 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Warning Label 2. . . . . . . . . . . . . . . . . . . . . .

Not for

Reprod

uctio

n

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--2 Assemblies include all parts shown in frames. 12/14/2012

2

2932

718

3

22

15

1

2

24

691552

68411

584

585

1263

1264

43

1270758

759

757

27

28

26

2725

741

146

16

46

4A

12

20

1017

415

1032

24

45

850

6

12

20

4

1027

307

306

102212

585

7

3

358 ENGINE GASKET SET

868

691524

51

20 617

883

1266842

1266A 51A

943

1058 OPERATOR’S MANUAL1319 WARNING LABEL

REQUIREDwhen replacing partswith warning labels affixed.

1036 EMISSIONS LABEL

1319AWARNING LABEL

REQUIRED when replacing partswith warning labels affixed.

Not for

Reprod

uctio

n

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--3 Assemblies include all parts shown in frames. 12/14/2012

3

830

1034

1022

7

238 36

868

1029

335

34

192

35

53

54

45

383

337

635

1026

13

1022

1023

914

1022

868

51

1095 VALVE GASKET SET

7

654

847

523

842

525

524

750

943

965

4242

1024A

850

883

883307

306

51

617

51A

51

617

50

51A

186

415

53

Not for

Reprod

uctio

n

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--4 Assemblies include all parts shown in frames. 12/14/2012

4

104A

105A

51

987A95A

130A

NIKKI

98A

133A

117A

131A

127A

118A

1127

975A

276A137A

135

137A

125A

1091

94A

947A

NOTE: This Illustration Represents SeveralCarburetors. Parts Shown May NotBe Included In All Kits.

141B

108B

217

634B

633

276A

121A CARBURETOR OVERHAUL KIT

104A

105A

127A51

1266

1266A

987A

137A

61751A

98A

633 217

276A

187B

601

Not for

Reprod

uctio

n

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--5 Assemblies include all parts shown in frames. 12/14/2012

5

1040B

385

387385A

387A

918

601

387A

385A

1139

773

431 1266A

1266 240

187

601

445B

968B

431B

1266

305B

304G

964

3041267

967

643

968

445

773

1139

187D 187

601601

305A

305

305B

305C

187B

601

Not for

Reprod

uctio

n

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--6 Assemblies include all parts shown in frames. 12/14/2012

6

37

78

783

105123

363 1044

1005

1070A

324

415A

949A

563A

Not for

Reprod

uctio

n

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--7 Assemblies include all parts shown in frames. 12/14/2012

7

334

1054

216 202

232

268

269

271

270

267

265209

222

188

616

404614

562

505

227

697

729A

802

462579

503

310

801

309

1090 311

797

789

NOTE: All stators use a No. mounting screw.1119NOTE: The proper flywheel part number and/or the alternator magnet size will

determine the alternator type or output. See repair instruction manualfor additional information.

356B

878

474B

877

1059

877D

1051

510

513

783

DUAL CIRCUIT

1119

851

3331448

Not for

Reprod

uctio

n

REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--8 Assemblies include all parts shown in frames. 12/14/2012

8

1 796010 Cylinder Assembly2 797673 Kit--Bushing/Seal

(Magneto Side)3 391086s Seal--Oil

(Magneto Side)4 697106 Sump--Engine

Used on Type No(s).0726, 0765, 0868,1403, 3403.

4A 697188 Sump--EngineUsed on Type No(s).0554.

5 796026 Head--Cylinder6 690310 Washer

(Used After Code Date07070900).

7 796584 Gasket--Cylinder Head11 794683 Tube--Breather12 697110 Gasket--Crankcase

(.015” Thick)(Standard)

13 793988 Screw(Cylinder Head)(Used After Code Date07010900).-- -- -- -- -- -- -- Note -- -- -- -- --690360 Screw(Cylinder Head)(Used Before CodeDate 07011000).

15 690946 Plug--Oil Drain(Square Head)

16 591763 Crankshaft(Used After Code Date12071700).-- -- -- -- -- -- Note -- -- -- -- -- --797585 Crankshaft(Used Before CodeDate 12071800).

20 795387 Seal--Oil(PTO Side)

22 692125 Screw(CrankcaseCover/Sump)

23 591761 Flywheel(Used After Code Date12071700).-- -- -- -- -- -- Note -- -- -- -- -- --693557 Flywheel(Used Before CodeDate 12071800).591759 Flywheel(Used After Code Date12071700).Used on Type No(s).0863, 1403, 3403.698281 Flywheel(Used Before CodeDate 12071800).Used on Type No(s).0863, 1403, 3403.

24 591751 Key--Flywheel(Used After Code Date12071700).-- -- -- -- -- -- Note -- -- -- -- -- --796335 Key--Flywheel(Used Before CodeDate 12071800).

25 796172 Piston Assembly(Standard)-- -- -- -- -- -- Note -- -- -- -- -- --796173 PistonAssembly(.020” Oversize)

26 791936 Ring Set(Standard)(Used After Code Date06010100).-- -- -- -- -- -- -- Note -- -- -- -- --699026 Ring Set(Standard)(Used Before CodeDate 06010200).792649 Ring Set(.020” Oversize)

27 698469 Lock--Piston Pin28 796007 Pin--Piston

(Standard)(Used After Code Date08042700).-- -- -- -- -- -- Note -- -- -- -- -- --697099 Pin--Piston(Standard)(Used Before CodeDate 08042800).

29 794122 Rod--Connecting32 791118 Screw

(Connecting Rod)33 792868 Valve--Exhaust34 791935 Valve--Intake35 691279 Spring--Valve

(Intake)36 691279 Spring--Valve

(Exhaust)37 697352 Guard--Flywheel42 499586 Keeper--Valve43 691968 Slinger--Governor/Oil45 690564 Tappet--Valve46 793880 Camshaft

Not for

Reprod

uctio

n

REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--9 Assemblies include all parts shown in frames. 12/14/2012

9

50 591248 Manifold--Intake51 692137 Gasket--Intake

51A 796081 Gasket--Intake53 591260 Stud

(Carburetor)(Used After Code Date11121800).-- -- -- -- -- -- Note -- -- -- -- -- --690227 Stud(Carburetor)(Used Before CodeDate 11121900).

54 691148 Screw(Intake Manifold)

78 691693 Screw(Flywheel Guard)

81 691178 Lock--Muffler Screw94A 793610 Kit--Idle Mixture95A 690718 Screw

(Throttle Valve)98A 695408 Kit--Idle Speed104A 694918 Pin--Float Hinge105A 696136 Valve--Float Needle108B 695419 Valve--Choke117A 699733 Jet--Main

(Standard)(Used After Code Date08092800).-- -- -- -- -- -- Note -- -- -- -- -- --792296 Jet--Main(Standard)(Used Before CodeDate 08092900).

118A 695415 Jet--Main(High Altitude)(Used After Code Date08092800).-- -- -- -- -- -- Note -- -- -- -- -- --842628 Jet--Main(High Altitude)(Used Before CodeDate 08092900).

121A 796184 Kit--CarburetorOverhaul(Nikki Carburetor)

125A 591734 Carburetor(Used After Code Date12081200).-- -- -- -- -- -- Note -- -- -- -- -- --796110 Carburetor(Used After Code Date08092800 and BeforeCode Date 12081300).792768 Carburetor(Used Before CodeDate 08092900).

127A 690727 Plug--Welch130A 792747 Valve--Throttle131A 792765 Kit--Throttle Shaft133A 694914 Float--Carburetor135 792022 Tube--Fuel Transfer

(Pump Feed)(Used After Code Date08092800).-- -- -- -- -- -- Note -- -- -- -- -- --798780 Tube--FuelTransfer(Gravity Feed)(Used Before CodeDate 08092900).

137A 698781 Gasket--Float Bowl141B 792777 Kit--Choke Shaft146 691639 Key--Timing186 794873 Connector--Hose187 791805 Line--Fuel

(Formed)(10--1/4Inches Long)(Cut toRequired Length)

187B 791766 Line--Fuel(15” Long)(Cut To RequiredLength)

187D 791744 Line--Fuel(Formed)(14 InchesLong)(Cut to RequiredLength)

188 691693 Screw(Control Bracket)

192 691986 Adjuster--Rocker Arm202 691841 Link--Mechanical

Governor209 796260 Spring--Governor216 691840 Link--Choke217 695409 Spring--Choke Return222 694042 Bracket--Control227 691374 Lever--Governor

Control232 691842 Spring--Governor Link238 691843 Cap--Valve240 394358S Filter--Fuel

(White, 75 Microns)265 691024 Clamp--Casing267 794904 Screw

(Casing Clamp)268 691025 Casing--Control Wire

(Cut To RequiredLength)

269 691026 Wire--Control(Cut To RequiredLength)

270 691027 Nut(Control Wire Casing)

271 691028 Lever--Control276A 695410 Washer--Sealing304 796416 Housing--Blower

(Black--CompatibleWith Panel Style Filter)

304G 591642 Housing--Blower(Black--CompatibleWith Canister StyleFilter)

305 697102 Screw(Blower Housing)

305A 793376 Screw(Non--Grommet StyleBlower Housing)

305B 795891 Screw(Blower Housing ToIntake Elbow)

305C 799370 Screw(Grommet StyleBlower Housing)

306 796006 Shield--Cylinder(Used After Code Date08042700).-- -- -- -- -- -- Note -- -- -- -- -- --697107 Shield--Cylinder(Used Before CodeDate 08042800).

307 691693 Screw(Cylinder Shield)

309 693551 Motor--Starter310 690323 Screw

(Starter Motor)311 497608 Brush Set324 796308 Screen--Rotating333 799650 Armature--Magneto334 691061 Screw

(Magneto Armature)337 491055s Plug--Spark

356B 697089 Wire--Stop358 796187 Gasket Set--Engine363 19203 Puller--Flywheel383 89838s Wrench--Spark Plug385 694476 Screw

(Fuel Pump)385A 690297 Screw

(Fuel Pump)387 697090 Pump--Fuel

(Used After Code Date08082400).

387A 808656 Pump--Fuel(Used Before CodeDate 08082500).

404 691691 Washer(Governor Crank)

Not for

Reprod

uctio

n

REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--10 Assemblies include all parts shown in frames. 12/14/2012

10

415 794903 Plug(Sump)

415A 794129 Plug(Cover/Retainer)

431 697122 Elbow--Intake431B 797901 Elbow--Intake

Used on Type No(s).0868, 3403.

445 698083 Filter--Air CleanerCartridge(Panel Style)

445B 796031 Filter--Air CleanerCartridge(Canister Style)

462 691261 Washer(Starter Cable)

474B 696459 Alternator(Dual Circuit)

503 691532 Strap--Starter505 691251 Nut

(Governor ControlLever)

510 693699 Drive--Starter513 692024 Clutch--Drive523 699908 Dipstick524 691032 Seal--Dipstick Tube525 697184 Tube--Dipstick552 697144 Bushing--Governor

Crank562 691119 Bolt

(Governor ControlLever)

563A 799359 Screw(Debris Guard)

579 691029 Nut(Starter Cable)

584 794682 Cover--BreatherPassage(Use With LiquidSealant Reference850).

585 697109 Gasket--Breather(Used Before CodeDate 07071900).(After Date Code UseLiquid SealantReference 850).

601 791850 Clamp--Hose(Green)

614 691620 Pin--Cotter616 692012 Crank--Governor617 692138 Seal--O Ring

(Intake Manifold)

633 699813 Seal--Choke/ThrottleShaft

634B 698779 Spring/Seal Assembly635 691909 Boot--Spark Plug643 698401 Retainer--Air Filter654 690958 Nut

(Carburetor)684 697157 Screw

(Breather PassageCover)

691 692407 Seal--Governor Shaft697 791680 Screw

(Drive Cap)718 690959 Pin--Locating

729A 691224 Clip--Wire741 697128 Gear--Timing750 790832 Screw

(Oil Pump Cover)757 793242 Link--Counterweight758 793763 Counterweight759 697392 Pin--Counterweight773 796448 Fastener

(Fuel Pump)783 693713 Gear--Pinion789 698329 Harness--Wiring797 693167 Nut

(Brush Retainer)801 691283 Cap--Drive802 691286 Cap--End823 698941 Screw

(Muffler Adapter)830 691095 Stud--Rocker Arm842 691031 Seal--O Ring

(Dipstick Tube)847 790442 Dipstick/Tube

Assembly850 100100 Sealant--Liquid

(Rocker Cover Gasketand Breather Gasket)

851 692424 Terminal--Spark Plug868 690968 Seal--Valve877 393456 Wire/Connector--

Alternator(Dual Circuit)

877D 790544 Wire/Connector--Alternator

878 398661 Harness--Alternator(Dual Circuit)

883 692236 Gasket--Exhaust914 691108 Screw

(Rocker Cover)

918 791851 Hose--Vacuum943 690589 Seal--O Ring

(Oil Pump Cover)947A 699915 Solenoid--Fuel949A 799358 Guard--Debris Screen964 799159 Cap--Connector965 499613 Cover--Oil Pump

Used on Type No(s).0554.

967 697015 Filter--Pre Cleaner968 698403 Cover--Air Cleaner

(Black--CompatibleWith Panel Style Filter)

968B 591647 Cover--Air Cleaner(Black--CompatibleWith Canister StyleFilter)(Used After Code Date12071700).-- -- -- -- -- -- Note -- -- -- -- -- --797902 Cover--AirCleaner(Black--CompatibleWith Canister StyleFilter)(Used Before CodeDate 12071800).

975A 699502 Bowl--Float987A 698777 Seal--Throttle Shaft1005 796083 Fan--Flywheel1017 690770 Screen--Oil Pump1022 272475s Gasket--Rocker Cover

(Used Before CodeDate 07091000).(After Date Code UseLiquid SealantReference 850).

1023 797421 Cover--Rocker1024A 794644 Pump--Oil

Used on Type No(s).0554.

1026 692003 Rod--Push(Intake)-- -- -- -- -- -- Note -- -- -- -- -- --692011 Rod--Push(Exhaust)

1027 492932s Filter--Oil1029 691751 Arm--Rocker1032 491710 Ball--Oil Pump

(Used Before CodeDate 04062800).

Not for

Reprod

uctio

n

REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION

31N600

Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4094--11 Assemblies include all parts shown in frames. 12/14/2012

11

1034 690822 Guide--Push Rod1036 Label--Emissions

(Available From ABriggs & StrattonAuthorized Dealer)

1040B 699852 Plate--Trim1044 698139 Screw

(Flywheel)1051 691265 Ring--Retaining1054 280275 Tie--Cable1058 276344 Operator’s Manual1059 698516 Kit--Screw/Washer

1070A 690363 Screw(Flywheel Fan)(Used Before CodeDate 08061000).

1090 691293 Retainer--Brush1091 691333 Cap--Limiter1095 794152 Gasket Set--Valve1119 691183 Screw

(Alternator)1127 695407 Screw

(Float Bowl)1139 796449 Washer

(Fuel Pump)1263 697124 Reed--Breather1264 697104 Screw

(Breather Reed)1266 691917 Seal--O Ring

(Intake Elbow)1266A 697123 Seal--O Ring

(Intake Elbow)

1267 697419 Latch--Blower Housing(Black)

1270 793243 Plug--AVSCounterweight(Used After Code Date06081300).-- -- -- -- -- -- Note -- -- -- -- -- --697156 Plug--AVSCounterweight(Used Before CodeDate 06081400).

1319 794467 Label--Warning1319A 797669 Label--Warning1448 690260 Washer

(Magneto Armature)

Not for

Reprod

uctio

n