Lawn & Garden Engine

Model # 21C314-0738-E1 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 21C314-0738-E1 engine, as well as links to manuals and error code tables, if available.

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21C314-0738-E1 Engine
Magneto 492341

#333

All parts diagram

Magneto

Part #492341

Replaced by #591459

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Manufacturer substitution
This part replaces 492341. Substitute parts can look different from the original.
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$51.90
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Lawn & Garden Equipment Engine Rocker Arm Cover Gasket (replaces 273486) 690971

#1022

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Lawn & garden equipment engine rocker arm cover gasket (replaces 273486)

Part #690971

$9.02
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Lawn & Garden Equipment Engine Recoil Starter Pawl (replaces 281505, 692260, Bs-281505s) 281505S

#459

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Lawn & garden equipment engine recoil starter pawl (replaces 281505, 692260, bs-281505s)

Part #281505S

This item is not returnable
$5.80
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Lawn & Garden Equipment Engine Recoil Starter Pawl Friction Plate (replaces 281503, Bs-692299) 692299

#456

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Lawn & garden equipment engine recoil starter pawl friction plate (replaces 281503, bs-692299)

Part #692299

This item is not returnable
$7.89
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Primer 790221

#976

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Primer

Part #790221

Replaced by #793382

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Manufacturer substitution
This part replaces 790221. Substitute parts can look different from the original.
This item is not returnable
$14.63
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Lawn & Garden Equipment Engine Hex Screw (replaces 690960, 692126, 697551, 94744, Bs-691108) 691108
Lawn & garden equipment engine hex screw (replaces 690960, 692126, 697551, 94744, bs-691108)

Part #691108

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$5.09
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Key 695756

#990

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Key

Part #695756

Replaced by #794696

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Manufacturer substitution
This part replaces 695756. Substitute parts can look different from the original.
$10.74
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Lawn & Garden Equipment Engine Oil Fill Cap (replaces 281658, 49-667, 66768, 692261, Bs-281658s) 281658S

#21

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Lawn & garden equipment engine oil fill cap (replaces 281658, 49-667, 66768, 692261, bs-281658s)

Part #281658S

This item is not returnable
$5.79
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Spark Wrench 19374S

#383

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Spark wrench

Part #19374S

Replaced by #19576S

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Manufacturer substitution
This part replaces 19374S. Substitute parts can look different from the original.
This item is not returnable

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$9.89
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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

This item is not returnable
$9.69
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Symptoms for gas walk-behind mowers

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

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

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

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 drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

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

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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.…