Lawn & Garden Engine

Model # 12H802-2639-B1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 12H802-2639-B1 engine, as well as links to manuals and error code tables, if available.

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12H802-2639-B1 Engine
Lawn & Garden Equipment Engine Air Filter 491588

#445

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Lawn & garden equipment engine air filter

Part #491588

Replaced by #491588S

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$9.21
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Carburetor Primer 496115

#976

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Carburetor primer

Part #496115

Replaced by #694395

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This part replaces 496115. Substitute parts can look different from the original.
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$5.09
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Lawn & Garden Equipment Engine Carburetor Rebuild Kit (replaces 493762, 498261) 498260

#121

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Lawn & garden equipment engine carburetor rebuild kit (replaces 493762, 498261)

Part #498260

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Gasket Set-c 498261

#977

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Gasket set-c

Part #498261

Replaced by #498260

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Fuel Cap 397974

#957

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Fuel cap

Part #397974

Replaced by #796577

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This part replaces 397974. Substitute parts can look different from the original.
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$15.09
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Starter Rope 692259

#58

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Starter rope

Part #692259

Replaced by #697316

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$7.31
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Fuel Line (red) 691050

#187

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Fuel line (red)

Part #691050

Replaced by #791766

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This part replaces 691050. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Ignition Coil 802574

#333

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Lawn & garden equipment engine ignition coil

Part #802574

Replaced by #590454

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This part replaces 802574. Substitute parts can look different from the original.
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$57.05
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Lawn & Garden Equipment Engine Recoil Starter Pulley (replaces 263074, 281504, Bs-498144) 498144
Lawn & garden equipment engine recoil starter pulley (replaces 263074, 281504, bs-498144)

Part #498144

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Tank 495224

#972

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Tank

Part #495224

Replaced by #699374

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$61.39
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Symptoms for gas walk-behind mowers

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

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

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

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

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

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…

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 rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

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

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 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.…