MTD
Gas Walk-Behind Mower

Model #126-478N000 MTD lawn mower

Here are the diagrams and repair parts for MTD 126-478N000 lawn mower, as well as links to manuals and error code tables, if available.


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Showing 10 of 248 parts

Lawn & Garden Equipment Wing Nut

#17

Parts list model 528- text only Diagram

Lawn & garden equipment wing nut

Part #720-0279
This item is not returnable
$2.84 | 
16% OFF MSRP:$3.40

In Stock

Lawn & Garden Equipment Hex Cap Screw

#99

Main frame model 487-488 Diagram

Lawn & garden equipment hex cap screw

Part #710-0751
This item is not returnable
$2.71 | 
13% OFF MSRP:$3.10

In Stock

Lawn & Garden Equipment Bolt

#15

Parts list model 528- text only Diagram

Lawn & garden equipment bolt

Part #710-1174
This item is not returnable
$4.86 | 
10% OFF MSRP:$5.40

In Stock

Lawn Mower Pawl Plate

#101

Main frame model 487-488 Diagram

Lawn mower pawl plate

Part #16855
This item is not returnable
$5.41

In Stock

Lawn & Garden Equipment Engine Recoil Starter Pawl

#90

Parts list model 475/476 text only Diagram

$7.83

In Stock

Lawn & Garden Equipment Hex Cap Screw

#66

Main frame model 487-488 Diagram

Lawn & garden equipment hex cap screw

Part #710-0623
This item is not returnable
$3.09

In Stock

Lawn Tractor Hex Screw

#64

Parts list model 528- text only Diagram

Lawn tractor hex screw

Part #710-0654A
This item is not returnable
$2.50 | 
19% OFF MSRP:$3.10

In Stock

Lawn Mower Wheel

#52

Parts list model 528- text only Diagram

Lawn mower wheel

Part #734-1268
$42.77 | 
11% OFF MSRP:$48.00

In Stock

Lawn & Garden Equipment Hex Washer Head Screw

#99

Parts list model 528- text only Diagram

Lawn & garden equipment hex washer head screw

Part #710-0603
This item is not returnable
$2.73 | 
22% OFF MSRP:$3.50

In Stock

Pawl Spring

#26

Parts list model 528- text only Diagram

Pawl spring

Part #748-0315
$10.72

In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel
Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up
Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, bad ignition coil

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.

March 1, 2016
By Lyle Weischwill
How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive cable if it's broken or frozen up inside the sheath.

Repair difficulty
Time required
 60 minutes or less
March 1, 2016
By Lyle Weischwill
How to replace a lawn mower blade

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

Repair difficulty
Time required
 15 minutes or less
April 1, 2013
By Lyle Weischwill
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.

Repair difficulty
Time required
 15 minutes or less

Articles and videos common to all walk-behind mowers

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

October 1, 2019

Types of walk-behind mower blades video

By Sears PartsDirect staff

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