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Craftsman
Gas Walk-Behind Mower

Model # CMXGMAM201207 (2021) Official Craftsman m320 lawn mower

Here are the diagrams and repair parts for Official Craftsman CMXGMAM201207-2021 m320 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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Model diagram and schematic

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Troybilt Lawn Mower 21-in Deck Mulching Blade (replaces 01002810, 742-0741a, 942-04276, 942-0741) 942-0741A
Troybilt lawn mower 21-in deck mulching blade (replaces 01002810, 742-0741a, 942-04276, 942-0741)

Part #942-0741A

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$29.10
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Lawn Mower Rear Skirt 731-07203
Lawn mower rear skirt

Part #731-07203

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$15.19
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Yard Machines Lawn & Garden Equipment Nut 712-04064
#NI

Grassbag/handle/height adjustment knob diagram

Yard machines lawn & garden equipment nut

Part #712-04064

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This item is not returnable
$4.49
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Lawn & Garden Equipment Engine Fuel Tank Cap (replaces Bs-597414) BS-84004416
#NI

Quick reference diagram

Lawn & garden equipment engine fuel tank cap (replaces bs-597414)

Part #BS-84004416

Replaced by #84004416

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Manufacturer substitution
This part replaces BS-84004416. Substitute parts can look different from the original.
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Lawn Mower Lower Handle Knob (replaces 720-05066) 720-05066A
#NI

Grassbag/handle/height adjustment knob diagram

Lawn mower lower handle knob (replaces 720-05066)

Part #720-05066A

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$6.04
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Lawn Mower 21-in Deck Xtreme Mulching Blade 942-0741-X
Lawn mower 21-in deck xtreme mulching blade

Part #942-0741-X

Replaced by #742P0741-X

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Manufacturer substitution
This part replaces 942-0741-X. Substitute parts can look different from the original.
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$22.02
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Lawn Mower Drive Control Bar 731-17335
#NI

Control bails/deck assy diagram

Lawn mower drive control bar

Part #731-17335

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Lawn Tractor Screw 710-04998
#NI

Grassbag/handle/height adjustment knob diagram

Lawn tractor screw

Part #710-04998

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Lawn & Garden Equipment Screw 710-05073
#NI

Side discharge chute/transmission/wheels diagram

Lawn & garden equipment screw

Part #710-05073

This item is not returnable
$6.19
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Lawn Mower Zone Control Cable (replaces 946-05107a) 946-05107B
Lawn mower zone control cable (replaces 946-05107a)

Part #946-05107B

$39.64
In Stock

Symptoms for gas walk-behind mowers

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...

Read more

Why does my lawn mower cut unevenly?

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade...

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Why does my lawn mower run rough?

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key...

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Why won't my lawn mower move?

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel...

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Why won't my lawn mower start?

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba...

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Why does my lawn mower stall?

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent...

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Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

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How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks....

Read more
Repair difficulty
Time required
60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope....

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Repair difficulty
Time required
15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix....

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Repair difficulty
Time required
15 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier....

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect....

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Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them....

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