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MTD
Gas Walk-Behind Mower

Model # 129-459R000 Official MTD lawn mower

Here are the diagrams and repair parts for Official MTD 129-459R000 lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 103 parts  |
Yard Machines Lawn & Garden Equipment Hex Bolt, 3/8-24 X 1-1/2-in (replaces 910-1044) 710-1044
#75

Lawn mower diagram

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

Part #710-1044

BEST SELLER
This item is not returnable
$5.33 | 
16% OFF Phone Price : $6.33
In Stock
Hex Nut 712-0267
#15

Lawn mower diagram

Hex nut

Part #712-0267

Replaced by #712-3010

?
Manufacturer substitution
This part replaces 712-0267. Substitute parts can look different from the original.
$7.71
In Stock
Lawn & Garden Equipment Self-tapping Screw 710-0726
#32

Lawn mower diagram

Lawn & garden equipment self-tapping screw

Part #710-0726

Replaced by #710-0726

?
Manufacturer substitution
This part replaces 710-0726. Substitute parts can look different from the original.
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Yard Machines Lawn & Garden Equipment Screw 710-1017
#45

Lawn 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
Toro Lawn & Garden Equipment Lock Washer (replaces 936-0169) 736-0169
#41

Lawn mower diagram

Toro lawn & garden equipment lock washer (replaces 936-0169)

Part #736-0169

This item is not returnable
$5.26
In Stock
Lawn & Garden Equipment Tap Screw 710-0227
Lawn & garden equipment tap screw

Part #710-0227

This item is not returnable
$5.47 | 
15% OFF Phone Price : $6.47
In Stock
Yard Machines Lawn & Garden Equipment Washer (replaces 936-0105) 736-0105
#80

Lawn mower diagram

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

Part #736-0105

This item is not returnable
$6.29
In Stock
Washer 736-0192
#81

Lawn mower diagram

Washer

Part #736-0192

Replaced by #936-0192

?
Manufacturer substitution
This part replaces 736-0192. Substitute parts can look different from the original.
This item is not returnable
$6.57 | 
13% OFF Phone Price : $7.57
In Stock
Cotter Pin 714-0104
#35

Lawn mower diagram

Cotter pin

Part #714-0104

This item is not returnable
$6.17
In Stock
Bolt 738-0507B
#79

Lawn mower diagram

Bolt

Part #738-0507B

$7.63
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

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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…

Read more
Repair difficulty
Time required
 45 minutes or less

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

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