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Murray
Complete Deck

Model # 403221 Official Murray mower deck

Here are the diagrams and repair parts for Official Murray 403221 mower deck, 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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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 69 parts  |
Hairpin Pin 31X4
#6

40" blade housing complete diagram

Hairpin pin

Part #31X4

Replaced by #703300

?
Manufacturer substitution
This part replaces 31X4. Substitute parts can look different from the original.
This item is not returnable
$6.69 | 
13% OFF Phone Price : $7.69
In Stock
Bolt 2X53Z
#61

40" blade housing complete diagram

Bolt

Part #2X53Z

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

Washer 18X33
#18

40" blade housing complete diagram

Washer

Part #18X33

Replaced by #18X33MA

?
Manufacturer substitution
This part replaces 18X33. Substitute parts can look different from the original.
This item is not returnable
$7.34
In Stock
Bolt 1X45
#68

40" blade housing complete diagram

Bolt

Part #1X45

Replaced by #703822

?
Manufacturer substitution
This part replaces 1X45. Substitute parts can look different from the original.
$8.03
In Stock
Lawn Tractor Blade Drive Sprocket 90875
#33

40" blade housing complete diagram

Lawn tractor blade drive sprocket

Part #90875

Replaced by #90875MA

?
Manufacturer substitution
This part replaces 90875. Substitute parts can look different from the original.
$110.22
In Stock
Blade Lh 91213HT
#65

40" blade housing complete diagram

Blade lh

Part #91213HT

Replaced by #91213E701MA

?
Manufacturer substitution
This part replaces 91213HT. Substitute parts can look different from the original.
$33.64
In Stock
Bolt 1X84
#51

40" blade housing complete diagram

Bolt

Part #1X84

Replaced by #703585

?
Manufacturer substitution
This part replaces 1X84. Substitute parts can look different from the original.
$8.26
In Stock
Idler Pulley 23238
#19

40" blade housing complete diagram

Idler pulley

Part #23238

Replaced by #423238MA

?
Manufacturer substitution
This part replaces 23238. Substitute parts can look different from the original.
$39.93
In Stock
Nut 15X73
#48

40" blade housing complete diagram

Nut

Part #15X73

Replaced by #41529MA

?
Manufacturer substitution
This part replaces 15X73. Substitute parts can look different from the original.
This item is not returnable
$6.69 | 
13% OFF Phone Price : $7.69
In Stock
Pulley 90872
#23

40" blade housing complete diagram

Pulley

Part #90872

Replaced by #91943MA

?
Manufacturer substitution
This part replaces 90872. Substitute parts can look different from the original.
$85.93
In Stock

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