Gas Walk-Behind Mower

Model # 20028 (9900001 & UP) Official Toro lawn mower

Here are the diagrams and repair parts for Official Toro 20028 (9900001 & UP) lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for
20028 (9900001 & UP) Walk-Behind Mowers
Lawn Mower Washer 614426
#11

Gear case/wheel diagram

Lawn mower washer

Part #614426

This item is not returnable
In Stock
Lawn Mower Nut 3296-5
#16

Gear case diagram

Lawn mower nut

Part #3296-5

This item is not returnable
In Stock
Toro Blade Driver Assembly 99-5287
#20

Engine & blade diagram

Toro blade driver assembly

Part #99-5287

In Stock
Toro Anchor Cable 94-6096
#12

Handle & controls diagram

Toro anchor cable

Part #94-6096

In Stock
Half Pulley 100-1176
#17

Gear case diagram

Half pulley

Part #100-1176

In Stock
Pin-groove 3285-19
#4

Gear case diagram

Pin-groove

Part #3285-19

This item is not returnable
In Stock
Toro Grass Shield 93-4196-03
#15

Engine & blade diagram

Toro grass shield

Part #93-4196-03

In Stock
Toro Decal-warning 99-6018
#4

Housing/handle brackets/wheel diagram

Toro decal-warning

Part #99-6018

This item is not returnable
In Stock
Toro Clamp Door 100-1589-03
#33

Engine & blade diagram

Toro clamp door

Part #100-1589-03

In Stock
Toro Spacer-axle Shaft 614447
#2

Gear case/wheel diagram

Toro spacer-axle shaft

Part #614447

This item is not returnable
In Stock

Symptoms for gas walk-behind mowers

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

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

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.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

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

Effective articles & videos to help repair your walk-behind mowers

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

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

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

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Types of walk-behind mower blades video

Types of walk-behind mower blades video

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