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Lawn-Boy
Gas Snowblower

Model # 522R (28231-7900001 & UP) Official Lawn-Boy snow thrower

Here are the diagrams and repair parts for Official Lawn-Boy 522R-28231-7900001-UP snow thrower, 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”.

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

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Model diagram and schematic

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ALL PARTS
Showing 10 of 388 parts  |
Gear 5-7180
#43

Auger assembly (continued) diagram

Gear

Part #5-7180

$160.73
In Stock
Toro Screw 12-3270
#4

Traction assembly diagram

Toro screw

Part #12-3270

This item is not returnable
$3.87
In Stock
Bearing Assembly 12-8789

#NI

All parts diagram

Bearing assembly

Part #12-8789

$34.22
In Stock
Spring 37-9150
#13

Handle assembly right side diagram

Spring

Part #37-9150

Replaced by #37-9150

?
Manufacturer substitution
This part replaces 37-9150. Substitute parts can look different from the original.
$18.26
In Stock
Screw 27-0220
#28

Auger assembly (continued) diagram

Screw

Part #27-0220

Replaced by #27-0220

?
Manufacturer substitution
This part replaces 27-0220. Substitute parts can look different from the original.
$14.80
In Stock
Mount Clutch 66-6790
#7

Traction assembly diagram

Mount clutch

Part #66-6790

Replaced by #66-6790

?
Manufacturer substitution
This part replaces 66-6790. Substitute parts can look different from the original.
$13.80
In Stock
Oil Plug 281-7
#19

Engine assembly diagram

Oil plug

Part #281-7

Replaced by #281-7

?
Manufacturer substitution
This part replaces 281-7. Substitute parts can look different from the original.
This item is not returnable
$7.26
In Stock
Handle-rh 52-5561
#1

Handle assembly right side diagram

Handle-rh

Part #52-5561

Replaced by #52-5561-03

?
Manufacturer substitution
This part replaces 52-5561. Substitute parts can look different from the original.
$102.76
In Stock
Gasket 51-0460
#51

Auger assembly (continued) diagram

Gasket

Part #51-0460

Replaced by #51-0460

?
Manufacturer substitution
This part replaces 51-0460. Substitute parts can look different from the original.
$15.09
In Stock
Key 3257-24
#23

Traction assembly (continued) diagram

Key

Part #3257-24

Replaced by #3257-24

?
Manufacturer substitution
This part replaces 3257-24. Substitute parts can look different from the original.
This item is not returnable
$7.29
In Stock

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