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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
This item is not returnable
$6.47 | 
13% OFF Phone Price : $7.47
In Stock
Plug 394539
#40

Cylinder, crankshaft&engine base diagram

Plug

Part #394539

Replaced by #796112S

?
Manufacturer substitution
This part replaces 394539. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.24 | 
16% OFF Phone Price : $6.24
In Stock
Element 271271
#52

Air cleaner-carburetor diagram

Element

Part #271271

Replaced by #272490S

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Manufacturer substitution
This part replaces 271271. Substitute parts can look different from the original.
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$6.98 | 
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In Stock
Key 222698
#57

Cylinder, crankshaft&engine base diagram

Key

Part #222698

Replaced by #222698S

?
Manufacturer substitution
This part replaces 222698. Substitute parts can look different from the original.
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$3.29 | 
23% OFF Phone Price : $4.29
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.
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$8.20 | 
11% OFF Phone Price : $9.20
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
$114.22 | 
10% OFF Phone Price : $126.22
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Carburetor 394502

#NI

All parts diagram

Carburetor

Part #394502

Replaced by #694056

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Manufacturer substitution
This part replaces 394502. Substitute parts can look different from the original.
BEST SELLER
$34.99 | 
15% OFF Phone Price : $40.99
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 | 
16% OFF Phone Price : $37.49
In Stock
Oil Seal 391086
#2

Cylinder, crankshaft&engine base diagram

Oil seal

Part #391086

Replaced by #391086S

?
Manufacturer substitution
This part replaces 391086. Substitute parts can look different from the original.
This item is not returnable
$9.69 | 
9% OFF Phone Price : $10.69
In Stock

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