Murray
Complete Deck

Model #403221 Murray mower deck

Here are the repair parts and diagrams for your Murray 403221 mower deck. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

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Showing 10 of 69 parts

Lawn & Garden Equipment Split-Lock Washer

#18

40" blade housing complete Diagram

Lawn & garden equipment split-lock washer

Part #018X33MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  18X33
This part replaces 18X33
This item is not returnable

$2.96

In Stock

Lawn & Garden Equipment Washer

#34

40" blade housing complete Diagram

Lawn & garden equipment washer

Part #017X87MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  17X157
This part replaces 17X157

$11.08

In Stock

Lawn & Garden Equipment Nut

#8

40" blade housing complete Diagram

Lawn & garden equipment nut

Part #021920ZMA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  21920
This part replaces 21920

$11.08

In Stock

Lawn & Garden Equipment Nut

#17

40" blade housing complete Diagram

Lawn & garden equipment nut

Part #15X101MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  15X101
This part replaces 15X101
This item is not returnable

$3.98

In Stock

Nut, 8-pack

#7

40" blade housing complete Diagram

Nut, 8-pack

Part #STD541431
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  15X79Z
This part replaces 15X79Z
This item is not returnable

$2.37

Back Order

Q2 Pulley 4.

#22

40" blade housing complete Diagram

Q2 pulley 4.

Part #090315MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  90315
This part replaces 90315

$37.49

In Stock

Washer

#43

40" blade housing complete Diagram

Washer

Part #17X158MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  17X158
This part replaces 17X158
This item is not returnable

$2.66

In Stock

Lawn & Garden Equipment Cotter Pin

#6

40" blade housing complete Diagram

Lawn & garden equipment cotter pin

Part #703300
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  31X4
This part replaces 31X4
This item is not returnable

$5.61

In Stock

Lawn & Garden Equipment Cotter Pin

#3

40" blade housing complete Diagram

Lawn & garden equipment cotter pin

Part #703312
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  30X20
This part replaces 30X20
This item is not returnable

$2.56

In Stock

Lawn Tractor Blade Drive Belt

#38

40" blade housing complete Diagram

Lawn tractor blade drive belt

Part #037X60MA
?This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including  37X54
This part replaces 37X54

Get free shipping with Automatic Reorder

$102.39

In Stock