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Craftsman
Gas Walk-Behind Mower

Model # CMXGMAM1125500 Official Craftsman m140 lawnmower

Here are the diagrams and repair parts for Official Craftsman CMXGMAM1125500 m140 lawnmower, 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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Model diagram and schematic

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Showing 10 of 16 parts  |
Craftsman Troybilt Lawn Mower 21-in Deck Mulching Blade (replaces 01002810, 742-0741a, 942-04276, 942-0741) 942-0741A
#NI02

Lawn mower diagram

Craftsman troybilt lawn mower 21-in deck mulching blade (replaces 01002810, 742-0741a, 942-04276, 942-0741)

Part #942-0741A

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$27.71 | 
18% OFF Phone Price : $33.71
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Lawn Mower Rear Skirt 731-07203
#NI13

Lawn mower diagram

Lawn mower rear skirt

Part #731-07203

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$14.47 | 
12% OFF Phone Price : $16.47
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Lawn Mower Blade Adapter 748-04096
#NI04

Lawn mower diagram

Lawn mower blade adapter

Part #748-04096

Replaced by #753-06304

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Manufacturer substitution
This part replaces 748-04096. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$30.49 | 
16% OFF Phone Price : $36.49
In Stock
Lawn Mower Grass Bag 664P05322
#NI10

Lawn mower diagram

Lawn mower grass bag

Part #664P05322

Replaced by #664P05322A

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Manufacturer substitution
This part replaces 664P05322. Substitute parts can look different from the original.
BEST SELLER
$44.80 | 
12% OFF Phone Price : $50.80
In Stock
Lawn Mower 21-in Deck Xtreme Mulching Blade 942-0741-X
#NI03

Lawn mower diagram

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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$22.68 | 
21% OFF Phone Price : $28.68
In Stock
Lawn Mower Air Filter 17211-Z8B-901
#NI01

Lawn mower diagram

Lawn mower air filter

Part #17211-Z8B-901

This item is not returnable
$18.76 | 
10% OFF Phone Price : $20.76
In Stock
Fuel Cap Assembly 17620-Z0J-800
#NI08

Lawn mower diagram

Fuel cap assembly

Part #17620-Z0J-800

Replaced by #17620-Z8B-800

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Manufacturer substitution
This part replaces 17620-Z0J-800. Substitute parts can look different from the original.
$23.80
In Stock
Yard Machines Lawn & Garden Equipment Hex Bolt, 3/8-24 X 1-1/2-in (replaces 910-1044) 710-1044
#NI05

Lawn mower diagram

Yard machines lawn & garden equipment hex bolt, 3/8-24 x 1-1/2-in (replaces 910-1044)

Part #710-1044

This item is not returnable
$5.33 | 
16% OFF Phone Price : $6.33
In Stock
Lawn Mower Mulching Plug Assembly (replaces 987-02516) 987-02516A
#NI11

Lawn mower diagram

Lawn mower mulching plug assembly (replaces 987-02516)

Part #987-02516A

$25.65 | 
19% OFF Phone Price : $31.65
In Stock
Lawn Mower Zone Control Cable (replaces 946-04661) 946-04661A
#NI06

Lawn mower diagram

Lawn mower zone control cable (replaces 946-04661)

Part #946-04661A

$19.20 | 
9% OFF Phone Price : $21.20
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 run rough?

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

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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 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 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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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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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 replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

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Repair difficulty
Time required
 45 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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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

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