Briggs & Stratton
Lawn & Garden Engine

Model # 124700 TO 124799 (4000 - 4000) Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 124700-TO-124799-4000-4000 engine, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 305 parts  |

Spark Plug 293918

#337A

All parts diagram

Spark plug

Part #293918

Replaced by #796112S

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Manufacturer substitution
This part replaces 293918. Substitute parts can look different from the original.
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Spark Plug 298809

#337

All parts diagram

Spark plug

Part #298809

Replaced by #796112S

?
Manufacturer substitution
This part replaces 298809. Substitute parts can look different from the original.
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This item is not returnable
$5.24
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Fuel Cap 397974

#957

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Fuel cap

Part #397974

Replaced by #796577

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Manufacturer substitution
This part replaces 397974. Substitute parts can look different from the original.
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Fuel Tank Cap 493017

#957A

All parts diagram

Fuel tank cap

Part #493017

Replaced by #796577

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Manufacturer substitution
This part replaces 493017. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Carburetor Float (replaces Bs-398187) 398187

#133

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Lawn & garden equipment engine carburetor float (replaces bs-398187)

Part #398187

This item is not returnable
$11.96
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Muffler 490547

#300

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Muffler

Part #490547

Replaced by #692038

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Manufacturer substitution
This part replaces 490547. Substitute parts can look different from the original.
$44.59
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Seal Int El 270344

#617

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Seal int el

Part #270344

Replaced by #270344S

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Manufacturer substitution
This part replaces 270344. Substitute parts can look different from the original.
This item is not returnable
$4.91
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Fuel Valve 494539

#958A

All parts diagram

Fuel valve

Part #494539

Replaced by #698180

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Manufacturer substitution
This part replaces 494539. Substitute parts can look different from the original.
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$19.94
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Screw 94120

#969

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Screw

Part #94120

Replaced by #690670

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Manufacturer substitution
This part replaces 94120. Substitute parts can look different from the original.
This item is not returnable
$10.09
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Terminal Cable 221798

#851

All parts diagram

Terminal cable

Part #221798

Replaced by #493880S

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Manufacturer substitution
This part replaces 221798. Substitute parts can look different from the original.
This item is not returnable
$4.75
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Symptoms for gas walk-behind mowers

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

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

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

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

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

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

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

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 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 transmission

How to replace a lawn mower transmission

Learn how to replace the transmission on your lawn mower if it's locked up or won't drive the wheels.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower carburetor

How to replace a lawn mower carburetor

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

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.…