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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.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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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
Decal 114-0321
#6

Deck/side chute/rear door diagram

Decal

Part #114-0321

$27.04
In Stock
Screw 107-7461
#13:4

Deck/side chute/rear door diagram

Screw

Part #107-7461

This item is not returnable
$2.16
In Stock
Groove Pin 105-6817
#2

Transmission assembly diagram

Groove pin

Part #105-6817

This item is not returnable
$5.86
In Stock
Belt Guide 105-3030-03
#8

Engine & blade assembly diagram

Belt guide

Part #105-3030-03

$22.33
In Stock
Washer 110-7466
#4

Front axle assembly diagram

Washer

Part #110-7466

$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Door 112-8864
#19

Deck/side chute/rear door diagram

Door

Part #112-8864

$62.40
In Stock
Lawn Mower Control Handle 104-8678
#10

Handle assembly diagram

Lawn mower control handle

Part #104-8678

$110.46
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
Plate 105-1811
#25

Rear axle/transmission diagram

Plate

Part #105-1811

$39.93
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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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

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