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Craftsman
Gas Walk-Behind Mower

Model # 247379790 Official Craftsman 21" self-propelled mower

Here are the diagrams and repair parts for Official Craftsman 247379790 21" self-propelled mower, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 147 parts  |
Blade-21" Mu 742-0741
#85

21" deck/handle/front axle cover diagram

Blade-21" mu

Part #742-0741

Replaced by #942-0741A

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Manufacturer substitution
This part replaces 742-0741. Substitute parts can look different from the original.
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$29.10 | 
17% OFF Phone Price : $35.10
In Stock
Knob Assembly 720-0241
#17

21" deck/handle/front axle cover diagram

Knob assembly

Part #720-0241

Replaced by #720-04072A

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Manufacturer substitution
This part replaces 720-0241. Substitute parts can look different from the original.
BEST SELLER
$9.33 | 
10% OFF Phone Price : $10.33
In Stock
Lawn Tractor Screw, 1/4-20 X 5/8-in (replaces 910-1652) 710-1652
#27

Chain/pulley/rear axle/bag diagram

Lawn tractor screw, 1/4-20 x 5/8-in (replaces 910-1652)

Part #710-1652

BEST SELLER
This item is not returnable
$5.44 | 
16% OFF Phone Price : $6.44
In Stock
Wing Nut 712-0397
#33

21" deck/handle/front axle cover diagram

Wing nut

Part #712-0397

Replaced by #712-0397A

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Manufacturer substitution
This part replaces 712-0397. Substitute parts can look different from the original.
This item is not returnable
$5.22 | 
16% OFF Phone Price : $6.22
In Stock
Lawn & Garden Equipment Hex Cap Screw 710-0751
Lawn & garden equipment hex cap screw

Part #710-0751

This item is not returnable
$5.12 | 
16% OFF Phone Price : $6.12
In Stock
Sears Lawn Mower Roller Wheel 756-0625
#43

21" deck/handle/front axle cover diagram

Sears lawn mower roller wheel

Part #756-0625

This item is not returnable
$12.00 | 
14% OFF Phone Price : $14.00
In Stock
Complete Wheel 734-2004A
#60

21" deck/handle/front axle cover diagram

Complete wheel

Part #734-2004A

Replaced by #753-08093

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Manufacturer substitution
This part replaces 734-2004A. Substitute parts can look different from the original.
$46.07 | 
12% OFF Phone Price : $52.07
In Stock
Toro Lawn & Garden Equipment Flat Washer 736-3084
#32

Chain/pulley/rear axle/bag diagram

Toro lawn & garden equipment flat washer

Part #736-3084

This item is not returnable
$6.14 | 
14% OFF Phone Price : $7.14
In Stock
Ryobi Lawn & Garden Equipment Flat Washer 736-0204
#66

21" deck/handle/front axle cover diagram

Ryobi lawn & garden equipment flat washer

Part #736-0204

This item is not returnable
$5.43 | 
16% OFF Phone Price : $6.43
In Stock
Cable Tie 726-0240
#20

21" deck/handle/front axle cover diagram

Cable tie

Part #726-0240

Replaced by #726-0178

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Manufacturer substitution
This part replaces 726-0240. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock

Symptoms for gas walk-behind mowers

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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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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

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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

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