Toro
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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Model diagram and schematic

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ALL PARTS
Showing 10 of 119 parts  |

Stop Nut 3296-29
#22

Housing/handle brackets/wheel diagram

Stop nut

Part #3296-29

The manufacturer no longer makes this part, and there's no substitute part

Lawn-boy Lawn Mower Screw 95-1726
#13

Engine & blade diagram

Lawn-boy lawn mower screw

Part #95-1726

This item is not returnable
In Stock
Toro Spacer 62-6660
#18

Gear case diagram

Toro spacer

Part #62-6660

This item is not returnable
In Stock
Toro Knob-lever, Height Adjustment 92-1008
#23

Housing/handle brackets/wheel diagram

Toro knob-lever, height adjustment

Part #92-1008

In Stock
Toro Bushing 47-2900
#3:2

Gear case/wheel diagram

Toro bushing

Part #47-2900

In Stock
Toro Lawn Mower Handle Knob 98-7134
#15

Handle & controls diagram

Toro lawn mower handle knob

Part #98-7134

This item is not returnable
In Stock
Toro Bushing Actuator 614673
#13

Housing/handle brackets/wheel diagram

Toro bushing actuator

Part #614673

In Stock
Pin-groove 3285-19
#4

Gear case diagram

Pin-groove

Part #3285-19

This item is not returnable
In Stock
Lawn & Garden Equipment Washer 3256-1
#11

Handle & controls diagram

Lawn & garden equipment washer

Part #3256-1

This item is not returnable
In Stock
Toro Lawn Mower Wheel Assembly 92-9591
#25

Housing/handle brackets/wheel diagram

Toro lawn mower wheel assembly

Part #92-9591

In Stock

Symptoms for gas walk-behind mowers

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

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

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

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

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

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

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

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....