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
Toro Screw 32144-119
#8

Housing/handle brackets/wheel diagram

Toro screw

Part #32144-119

This item is not returnable
In Stock
Washer 3256-24
#14

Gear case diagram

Washer

Part #3256-24

This item is not returnable
In Stock
Toro Chute 99-5295
#30

Engine & blade diagram

Toro chute

Part #99-5295

In Stock
Toro Baffle 99-6349
#35

Engine & blade diagram

Toro baffle

Part #99-6349

In Stock
Toro Lawn Mower Ground Drive Belt, 3/8 X 32-in 93-0232
#1

Gear case/wheel diagram

Toro lawn mower ground drive belt, 3/8 x 32-in

Part #93-0232

In Stock
Toro Bracket 93-0233
#17

Housing/handle brackets/wheel diagram

Toro bracket

Part #93-0233

In Stock
Toro Walk-behind Lawn Mower Engine Pulley 95-1878
#21

Engine & blade diagram

Toro walk-behind lawn mower engine pulley

Part #95-1878

In Stock
Toro Lawn Mower Wheel, 8-in 92-9590
#9

Gear case/wheel diagram

Toro lawn mower wheel, 8-in

Part #92-9590

In Stock
Toro Deck Housing 99-5236
#36

Engine & blade diagram

Toro deck housing

Part #99-5236

In Stock

Symptoms for gas walk-behind mowers

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

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

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

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

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…

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

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 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…

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

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…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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.

The best time of day to mow grass (and when you should absolutely not)

The best time of day to mow grass (and when you should absolutely not)

Wondering when to mow your lawn for the best results? Timing matters more than you might think. Discover the best time o…

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.…