Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Briggs & Stratton
Lawn & Garden Engine

Model # 422437-1278-01 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 422437-1278-01 engine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 176 parts  |
Filter 394358

#240

All parts diagram

Filter

Part #394358

Replaced by #394358S

?
Manufacturer substitution
This part replaces 394358. Substitute parts can look different from the original.
BEST SELLER
$7.12 | 
12% OFF Phone Price : $8.12
In Stock
Gear 394348

#219

All parts diagram

Gear

Part #394348

Replaced by #793338

?
Manufacturer substitution
This part replaces 394348. Substitute parts can look different from the original.
BEST SELLER
$33.39 | 
13% OFF Phone Price : $38.39
In Stock
Lawn & Garden Equipment Engine Starter Motor (replaces 394674, 394808) 497596

#309

All parts diagram

Lawn & garden equipment engine starter motor (replaces 394674, 394808)

Part #497596

BEST SELLER
$140.27 | 
7% OFF Phone Price : $150.27
In Stock
Carburetor 491539

#121

All parts diagram

Carburetor

Part #491539

Replaced by #694056

?
Manufacturer substitution
This part replaces 491539. Substitute parts can look different from the original.
BEST SELLER
$42.21 | 
11% OFF Phone Price : $47.21
In Stock
Elbow Spacer Plug 66538

#635

All parts diagram

Elbow spacer plug

Part #66538

Replaced by #66538S

?
Manufacturer substitution
This part replaces 66538. Substitute parts can look different from the original.
This item is not returnable
$5.11 | 
16% OFF Phone Price : $6.11
In Stock
Terminal Cable 221798

#851

All parts 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
Cartridge 394018

#445

All parts diagram

Cartridge

Part #394018

Replaced by #394018S

?
Manufacturer substitution
This part replaces 394018. Substitute parts can look different from the original.
This item is not returnable
$31.49 | 
14% OFF Phone Price : $36.49
In Stock
Screw 93381

#334

All parts diagram

Screw

Part #93381

Replaced by #691061

?
Manufacturer substitution
This part replaces 93381. Substitute parts can look different from the original.
This item is not returnable
$5.09 | 
16% OFF Phone Price : $6.09
In Stock
Armature 394891

#333

All parts diagram

Armature

Part #394891

Replaced by #590781

?
Manufacturer substitution
This part replaces 394891. Substitute parts can look different from the original.
$75.04 | 
6% OFF Phone Price : $80.04
In Stock
Lawn & Garden Equipment Engine Flywheel Puller, Large 19203

#363

All parts diagram

Lawn & garden equipment engine flywheel puller, large

Part #19203

This item is not returnable
$25.45 | 
16% OFF Phone Price : $30.45
In Stock

Symptoms for gas ranges

Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

Read more

Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

Read more

Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a range spark module

How to replace a range spark module

Follow these step-by-step instructions to put the fire back into the surface burners on your gas range by replacing the …

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less

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

View all
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.…

Read more
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.…

Read more

Parts & More