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Bolens
Gas Walk-Behind Mower

Model # 446 Official Bolens lawn mower

Here are the diagrams and repair parts for Official Bolens 446 lawn 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 85 parts  |
Blade-21" Mu 742-0741
#62

21" rear-discharge mower 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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$27.71 | 
18% OFF Phone Price : $33.71
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Bell Support 736-0524A
#75

21" rear-discharge mower diagram

Bell support

Part #736-0524A

Replaced by #736-0524B-1

?
Manufacturer substitution
This part replaces 736-0524A. Substitute parts can look different from the original.
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$6.58 | 
13% OFF Phone Price : $7.58
In Stock
Yard Machines Lawn & Garden Equipment Wing Nut (replaces 01002925, 920-0279) 720-0279
#14

21" rear-discharge mower diagram

Yard machines lawn & garden equipment wing nut (replaces 01002925, 920-0279)

Part #720-0279

This item is not returnable
$6.87 | 
13% OFF Phone Price : $7.87
In Stock
Yard Machines Lawn & Garden Equipment Guide Bolt 710-1205
#15

21" rear-discharge mower diagram

Yard machines lawn & garden equipment guide bolt

Part #710-1205

This item is not returnable
$5.01 | 
17% OFF Phone Price : $6.01
In Stock
Yard Machines Lawn & Garden Equipment Screw 710-1017
#28

21" rear-discharge mower diagram

Yard machines lawn & garden equipment screw

Part #710-1017

This item is not returnable
$12.71 | 
14% OFF Phone Price : $14.71
In Stock
Nut 712-0431
Nut

Part #712-0431

Replaced by #912-0431

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Manufacturer substitution
This part replaces 712-0431. Substitute parts can look different from the original.
This item is not returnable
$7.57 | 
12% OFF Phone Price : $8.57
In Stock
Lawn & Garden Equipment Hex Bolt (replaces 01000943, 910-1257) 710-1257
#74

21" rear-discharge mower diagram

Lawn & garden equipment hex bolt (replaces 01000943, 910-1257)

Part #710-1257

This item is not returnable
$9.85 | 
9% OFF Phone Price : $10.85
In Stock
Yard Machines Lawn & Garden Equipment Washer (replaces 936-0105) 736-0105
#32

21" rear-discharge mower diagram

Yard machines lawn & garden equipment washer (replaces 936-0105)

Part #736-0105

This item is not returnable
$6.29
In Stock
Yard Machines Lawn & Garden Equipment Bolt 710-1174
#11

21" rear-discharge mower diagram

Yard machines lawn & garden equipment bolt

Part #710-1174

This item is not returnable
$10.97 | 
15% OFF Phone Price : $12.97
In Stock
Blade Adapter 748-04015
#60

21" rear-discharge mower diagram

Blade adapter

Part #748-04015

Replaced by #948-04015A

?
Manufacturer substitution
This part replaces 748-04015. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

$57.40 | 
9% OFF Phone Price : $63.40
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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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
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How to replace a lawn mower blade

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

Read more
Repair difficulty
Time required
 15 minutes or less
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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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