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Murray
Gas Walk-Behind Mower

Model # 20646X9A Official Murray lawn mower

Here are the diagrams and repair parts for Official Murray 20646X9A lawn mower, as well as links to manuals and error code tables, if available.

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  • 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.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 86 parts  |
Nut 15X116
#5

Handle diagram

Nut

Part #15X116

Replaced by #703232

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Manufacturer substitution
This part replaces 15X116. Substitute parts can look different from the original.
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This item is not returnable
$6.24 | 
14% OFF Phone Price : $7.24
In Stock
Wing Nut 71294
#13

Handle diagram

Wing nut

Part #71294

Replaced by #1501260MA

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Manufacturer substitution
This part replaces 71294. Substitute parts can look different from the original.
$10.93 | 
15% OFF Phone Price : $12.93
In Stock
Wing Nut 71495
#66

Engine diagram

Wing nut

Part #71495

Replaced by #1501260MA

?
Manufacturer substitution
This part replaces 71495. Substitute parts can look different from the original.
$10.93 | 
15% OFF Phone Price : $12.93
In Stock
Washer .51-1 17X120
#43

Engine diagram

Washer .51-1

Part #17X120

Replaced by #703128

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Manufacturer substitution
This part replaces 17X120. Substitute parts can look different from the original.
This item is not returnable
$6.31
In Stock
20" Blade 671921E701
#48

Engine diagram

20" blade

Part #671921E701

Replaced by #672763E701MA

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Manufacturer substitution
This part replaces 671921E701. Substitute parts can look different from the original.

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$34.71
In Stock
Retainer 28X64
#67

Engine diagram

Retainer

Part #28X64

Replaced by #703297

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Manufacturer substitution
This part replaces 28X64. Substitute parts can look different from the original.
This item is not returnable
$6.71
In Stock
Retainer Ring 11X16
#23

Engine diagram

Retainer ring

Part #11X16

Replaced by #11X16MA

?
Manufacturer substitution
This part replaces 11X16. Substitute parts can look different from the original.
This item is not returnable
$6.91
In Stock
Dustcover 8" 71780
#44

Engine diagram

Dustcover 8"

Part #71780

Replaced by #71780MA

?
Manufacturer substitution
This part replaces 71780. Substitute parts can look different from the original.
$10.74
In Stock
Thrust Washer 17X169
#40

Engine diagram

Thrust washer

Part #17X169

Replaced by #703966

?
Manufacturer substitution
This part replaces 17X169. Substitute parts can look different from the original.
$7.77
In Stock
Screw 4X21
#38

Engine diagram

Screw

Part #4X21

Replaced by #4X21MA

?
Manufacturer substitution
This part replaces 4X21. Substitute parts can look different from the original.
This item is not returnable
$6.86
In Stock

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Choose a symptom to see related walk-behind mower repairs.

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Why does my lawn mower vibrate a lot?

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

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Why won't my lawn mower move?

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