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Toro
Gas Walk-Behind Mower

Model # 20073A Official Toro lawn mower

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

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  • In the search box below, enter all or part of the part number or the part’s name.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual
  View engine

Model diagram and schematic

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ALL PARTS
Showing 10 of 229 parts  |
Lawn Mower Washer 614426
Lawn mower washer

Part #614426

This item is not returnable
$4.31
In Stock
Nut 3218-6
#39

Deck/side chute/rear door diagram

Nut

Part #3218-6

This item is not returnable
$2.16
In Stock
Rod 105-1827
#25

Deck/side chute/rear door diagram

Rod

Part #105-1827

This item is not returnable
$21.54
In Stock
Pivot Arm 108-9781
#9

Rear axle/wheel/transmission diagram

Pivot arm

Part #108-9781

$12.06
In Stock
Washer Screw 46-6810
#22

Deck/side chute/rear door diagram

Washer screw

Part #46-6810

This item is not returnable
$7.29
In Stock
Lawn Mower Grass Bag Handle Bracket 108-9788
#27

Handle assembly diagram

Lawn mower grass bag handle bracket

Part #108-9788

This item is not returnable
$6.74
In Stock
Thrust Washer 105-6840
Thrust washer

Part #105-6840

This item is not returnable
$3.80
In Stock
Decal 114-0338
#11

Handle assembly diagram

Decal

Part #114-0338

$24.60
In Stock
Washer 110-7191
#33

Rear axle/wheel/transmission diagram

Washer

Part #110-7191

This item is not returnable
$3.74
In Stock
Lawn Mower Idler Arm Bracket 106-6809-03
Lawn mower idler arm bracket

Part #106-6809-03

$22.11
In Stock

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Symptoms for gas walk-behind mowers

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

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Why does my lawn mower run rough?

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

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Why does my lawn mower cut unevenly?

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

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Why does my lawn mower vibrate a lot?

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

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Why won't my lawn mower start?

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

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Why does my lawn mower stall?

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

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Why won't my lawn mower move?

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

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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.

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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…

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

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

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Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

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Repair difficulty
Time required
 45 minutes or less

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

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

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