MTD
Gas Walk-Behind Mower

Model #11A-428Q088 MTD lawn mower

Here are the repair parts and diagrams for your MTD 11A-428Q088 lawn mower. 

The diagram(s) below can help you find the right part.  If you’d like help, we invite you to call our customer service number at the top of the page, or click chat.

On this page, you can also find any manuals, installation guides and error code tables associated with this model.

For advice on diagnosing problems with appliances, lawn & garden equipment and other products, check out the videos, repair guides and articles in our DIY section.

Save to my profile

Showing 10 of 48 parts

Lawn & Garden Equipment Hex Bolt, 3/8-24 x 1-1/2-in

#33

Lawn mower page 2 Diagram

Lawn & garden equipment hex bolt, 3/8-24 x 1-1/2-in

Part #710-1044
This item is not returnable

$2.96

In Stock

Lawn & Garden Equipment Wing Nut

#3

Lawn mower page 2 Diagram

Lawn & garden equipment wing nut

Part #720-0279
This item is not returnable

$2.98

In Stock

Lawn & Garden Equipment Guide Bolt

#2

Lawn mower Diagram

Lawn & garden equipment guide bolt

Part #710-1205
This item is not returnable

$2.72

In Stock

Lawn & Garden Equipment Bolt

#4

Lawn mower Diagram

Lawn & garden equipment bolt

Part #710-1174
This item is not returnable

$4.86

In Stock

Lawn & Garden Equipment Hex Screw

#55

Lawn mower page 2 Diagram

Lawn & garden equipment hex screw

Part #710-0896
This item is not returnable

$2.83

In Stock

Lawn Tractor Hex Screw

#52

Lawn mower Diagram

Lawn tractor hex screw

Part #710-0654A
This item is not returnable

$2.50

In Stock

Door-rear Di

#23

Lawn mower page 2 Diagram

Door-rear di

Part #782-7000

$52.17

In Stock

Lawn & Garden Equipment Machine Screw

#7

Lawn mower Diagram

Lawn & garden equipment machine screw

Part #710-0605
This item is not returnable

$2.84

In Stock

Lawn & Garden Equipment Hex Screw

#77

Lawn mower page 2 Diagram

Lawn & garden equipment hex screw

Part #710-1256
This item is not returnable

$4.19

In Stock

Lawn & Garden Equipment Screw

#28

Lawn mower Diagram

Lawn & garden equipment screw

Part #710-1237
This item is not returnable

$2.61

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
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
April 1, 2013
By Lyle Weischwill
How to replace a lawn mower safety switch

The safety switch stops the engine when you release the lever on the handle. This repair guide explains how to replace it if it's not working correctly.

Repair difficulty
Time required
 30 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.