Briggs & Stratton
Lawn & Garden Engine

Model # 422400 TO 422499 (0721-01 - 0721-01 Official Briggs & Stratton gas engine - 0721-01

Here are the diagrams and repair parts for Official Briggs & Stratton 422400-TO-422499-0721-01-0721-01 gas engine - 0721-01, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 185 parts  |

Filter 394358
#67

Air cleaner-carburetor group diagram

Filter

Part #394358

Replaced by #394358S

?
Manufacturer substitution
This part replaces 394358. Substitute parts can look different from the original.
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$7.12
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In Stock
Plug 394539
#40

Cylinder, crankshaft and engine base group diagram

Plug

Part #394539

Replaced by #796112S

?
Manufacturer substitution
This part replaces 394539. Substitute parts can look different from the original.
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This item is not returnable
$5.24
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Element 271271
#52

Air cleaner-carburetor group 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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Key 222698
#57

Cylinder, crankshaft and engine base group 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
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Starter Gear 280104
#22

Starter motor group diagram

Starter gear

Part #280104

Replaced by #695708

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Manufacturer substitution
This part replaces 280104. Substitute parts can look different from the original.
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$8.45
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Elbow Spacer Plug 66538
#55

Cylinder, crankshaft and engine base group 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
Oil Seal 391086
#2

Cylinder, crankshaft and engine base group 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
Oil Plug 91084
#14

Cylinder, crankshaft and engine base group diagram

Oil plug

Part #91084

Replaced by #690946

?
Manufacturer substitution
This part replaces 91084. Substitute parts can look different from the original.
This item is not returnable
$9.59
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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
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In Stock
Lawn & Garden Equipment Engine Fuel Pump Rebuild Kit 393397

#NI

All parts diagram

Lawn & garden equipment engine fuel pump rebuild kit

Part #393397

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

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Repair difficulty
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