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Briggs & Stratton
Lawn & Garden Engine

Model # 422437-0721-01 Official Briggs & Stratton engine

Here are the diagrams and repair parts for Official Briggs & Stratton 422437-0721-01 engine, as well as links to manuals and error code tables, if available.

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

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Model diagram and schematic

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ALL PARTS
Showing 10 of 187 parts  |
Filter 394358
#67

Air cleaner-carburetor 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
#37

Cylinder, crankshaft&engine base 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
Starter Gear 280104
#22

Starter motor group diagram

Starter gear

Part #280104

Replaced by #695708

?
Manufacturer substitution
This part replaces 280104. Substitute parts can look different from the original.
BEST SELLER
$8.45 | 
11% OFF Phone Price : $9.45
In Stock
Start Mower 394808
#18

Starter motor group diagram

Start mower

Part #394808

Replaced by #497596

?
Manufacturer substitution
This part replaces 394808. Substitute parts can look different from the original.
BEST SELLER
$140.27 | 
7% OFF Phone Price : $150.27
In Stock
Carburetor 394502

#NI

All parts diagram

Carburetor

Part #394502

Replaced by #694056

?
Manufacturer substitution
This part replaces 394502. Substitute parts can look different from the original.
BEST SELLER
$42.21 | 
11% OFF Phone Price : $47.21
In Stock
Elbow Spacer Plug 66538
#55

Cylinder, crankshaft&engine base 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
Cartridge 394018
#62

Air cleaner-carburetor 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
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
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
#34

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 | 
11% OFF Phone Price : $44.79
In Stock

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