Briggs & Stratton
Lawn & Garden Engine

Model # 40U877-0003-G1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 40U877-0003-G1 engine, as well as links to manuals and error code tables, if available.

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Showing 10 of 184 parts  |

Lawn & Garden Equipment Engine Fuel Filter (replaces 695666) 845125
#240

Carburetor/fuel pump/fuel hose diagram

Lawn & garden equipment engine fuel filter (replaces 695666)

Part #845125

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Lawn & Garden Equipment Engine Fuel Line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499) 791766
#187

Carburetor/fuel pump/fuel hose diagram

Lawn & garden equipment engine fuel line (replaces 1734994sm, 327290ma, 691050, 7012638yp, 7032016yp, 7032956yp, 7041996yp, 7076272yp, 7077351yp, 791866, 798512, 809322, 809499)

Part #791766

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Lawn & Garden Equipment Engine Air Filter 593240
#445

Blower housing/air cleaner/ready start diagram

Lawn & garden equipment engine air filter

Part #593240

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Lawn & Garden Equipment Engine Flywheel Key (replaces 222698, 690974, Bs-222698s) 222698S
#24

Cylinder/crankshaft/piston/rings diagram

Lawn & garden equipment engine flywheel key (replaces 222698, 690974, bs-222698s)

Part #222698S

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Lawn & Garden Equipment Engine Spark Plug 792015
#337

Cylinder head/intake manifold diagram

Lawn & garden equipment engine spark plug

Part #792015

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Lawn & Garden Equipment Engine Rocker Arm Cover Gasket (replaces 273486) 690971
Lawn & garden equipment engine rocker arm cover gasket (replaces 273486)

Part #690971

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Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 698781
Lawn & garden equipment engine carburetor float bowl gasket

Part #698781

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Lawn & Garden Equipment Engine Spark Plug Wrench (replaces 19374s, 19576, Bs-19576s) 19576S
#383

Cylinder head/intake manifold diagram

Lawn & garden equipment engine spark plug wrench (replaces 19374s, 19576, bs-19576s)

Part #19576S

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Lawn & Garden Equipment Engine Oil Seal (replaces 391086, 690926, Bs-391086s) 391086S
Lawn & garden equipment engine oil seal (replaces 391086, 690926, bs-391086s)

Part #391086S

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Lawn & Garden Equipment Engine Oil Drain Plug (replaces 805048, 91084, 94239, Bs-690946) 690946
#15

Sump/dipstick/oil fill diagram

Lawn & garden equipment engine oil drain plug (replaces 805048, 91084, 94239, bs-690946)

Part #690946

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Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…