Gas Walk-Behind Mower

Model # 20073 Official Toro lawn mower

Here are the diagrams and repair parts for Official Toro 20073 lawn mower, as well as links to manuals and error code tables, if available.

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Browse Parts for
20073 Walk-Behind Mowers
Pinion Gear 105-3040
Pinion gear

Part #105-3040

This item is not returnable
In Stock
Lawn-boy Lawn Mower Screw 95-1726
#6

Engine & blade assembly diagram

Lawn-boy lawn mower screw

Part #95-1726

This item is not returnable
In Stock
Lawn-boy Lawn Mower Shoulder Bolt 614650
Lawn-boy lawn mower shoulder bolt

Part #614650

This item is not returnable
In Stock
Lawn Mower Bolt 3229-11
Lawn mower bolt

Part #3229-11

This item is not returnable
In Stock
Lawn Mower Screw 32144-85
#15

Engine & blade assembly diagram

Lawn mower screw

Part #32144-85

This item is not returnable
In Stock
Rope Guide 106-8330
#6

Handle assembly diagram

Rope guide

Part #106-8330

In Stock
Guide-lh 105-6842
#15

Handle assembly diagram

Guide-lh

Part #105-6842

In Stock
Bushing-sl 108-9782
#32

Rear axle/transmission diagram

Bushing-sl

Part #108-9782

This item is not returnable
In Stock
Lawn Mower Control Handle 104-8678
#10

Handle assembly diagram

Lawn mower control handle

Part #104-8678

In Stock
Washer 110-7191
#33

Rear axle/transmission diagram

Washer

Part #110-7191

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: 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: 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: 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…

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.

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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.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

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