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Toro
Lawn & Garden

Model # 51940 Official Toro brush cutter

Here are the diagrams and repair parts for Official Toro 51940 brush cutter, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 124 parts  |
Toro Nut-he X 81068
#28

Upper shaft diagram

Toro nut-he x

Part #81068

This item is not returnable
$5.49
In Stock
Toro Button-off Lock 983623001
#8

Upper shaft diagram

Toro button-off lock

Part #983623001

$7.71
In Stock
Toro Screw-clutch 6635301
#32

Engine diagram

Toro screw-clutch

Part #6635301

This item is not returnable
$5.49
In Stock
Toro Clip-hose 6969901
#35

Engine diagram

Toro clip-hose

Part #6969901

This item is not returnable
$6.51
In Stock
Line Cutting Blade PS04379
#17

Attachment shaft diagram

Line cutting blade

Part #PS04379

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

Coil Boot 2917801
#6

Engine diagram

Coil boot

Part #2917801

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

Screw (m5 X 0.8 X 16mm, Torx Recessed Pan Head, Machine) (9) 6635101
#44

Engine diagram

Screw (m5 x 0.8 x 16mm, torx recessed pan head, machine) (9)

Part #6635101

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

Washer (2) 983788071
#49

Engine diagram

Washer (2)

Part #983788071

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

Muffler 3074802
#10

Engine diagram

Muffler

Part #3074802

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

Screw (#8-16 X 1/2 In. Tri-lobular) 968702007
#17

Upper shaft diagram

Screw (#8-16 x 1/2 in. tri-lobular)

Part #968702007

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

Symptoms for treadmills

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your fitness & exercise

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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Top questions about Sears and Sears PartsDirect

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