Briggs & Stratton
Lawn & Garden Engine

Model # 422437-1256-01 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 422437-1256-01 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 183 parts  |

Carburetor 491539
#71

Air cleaner-carburetor group diagram

Carburetor

Part #491539

Replaced by #694056

?
Manufacturer substitution
This part replaces 491539. Substitute parts can look different from the original.
$34.99
15% OFF Phone Price : $40.99
In Stock
Armature Assembly 394988
#5

Starter motor group diagram

Armature assembly

Part #394988

Replaced by #590781

?
Manufacturer substitution
This part replaces 394988. Substitute parts can look different from the original.
$70.84
8% OFF Phone Price : $76.84
In Stock
Armature 394891
#1

Starter motor group diagram

Armature

Part #394891

Replaced by #590781

?
Manufacturer substitution
This part replaces 394891. Substitute parts can look different from the original.
$70.84
8% OFF Phone Price : $76.84
In Stock
Gear 394348
#37

Cylinder, crankshaft and engine base diagram

Gear

Part #394348

Replaced by #793338

?
Manufacturer substitution
This part replaces 394348. Substitute parts can look different from the original.
$31.42
16% OFF Phone Price : $37.42
In Stock
Terminal Cable 221798
#3

Starter motor group diagram

Terminal cable

Part #221798

Replaced by #493880S

?
Manufacturer substitution
This part replaces 221798. Substitute parts can look different from the original.
This item is not returnable
$4.75
17% OFF Phone Price : $5.75
In Stock
Oil Seal 68838
#45

Cylinder, crankshaft and engine base diagram

Oil seal

Part #68838

Replaced by #281370S

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Manufacturer substitution
This part replaces 68838. Substitute parts can look different from the original.
This item is not returnable
$11.80
14% OFF Phone Price : $13.80
In Stock
Clamp 93053
Clamp

Part #93053

Replaced by #791850

?
Manufacturer substitution
This part replaces 93053. Substitute parts can look different from the original.
This item is not returnable
$4.74
17% OFF Phone Price : $5.74
In Stock
Spring Kit 393254
#25

Starter motor group diagram

Spring kit

Part #393254

The manufacturer no longer makes this part, and there's no substitute part

Drive 396865
#33

Starter motor group diagram

Drive

Part #396865

Replaced by #696540

?
Manufacturer substitution
This part replaces 396865. Substitute parts can look different from the original.
$39.79
13% OFF Phone Price : $45.79
In Stock
Clutch 398003
#21

Starter motor group diagram

Clutch

Part #398003

Replaced by #692024

?
Manufacturer substitution
This part replaces 398003. Substitute parts can look different from the original.
This item is not returnable
$27.29
18% OFF Phone Price : $33.29
In Stock

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.…