Toro
Electric Line Trimmer

Model #51803 Official Toro trimmer

Here are the diagrams and repair parts for Toro 51803 trimmer, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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.

Showing 10 of 40 parts

Gear Assembly#30

Motor and blade assembly Diagram

Gear assembly

Part #181490
In Stock
$113.44
Lock Off Button#7

Housing and handle assembly Diagram

Lock off button

Part #181484
This item is not returnable
In Stock
$6.13
Handle#3

Housing and handle assembly Diagram

Handle

Part #180049
In Stock
$71.71
Armature#21

Motor and blade assembly Diagram

Armature

Part #181489
In Stock
$117.31
Bld Asm (518

#NI

All parts Diagram

Bld asm (518

Part #181491
In Stock
$306.76
Housing Assembly#12

Housing and handle assembly Diagram

Housing assembly

Part #181485
In Stock
$258.64
Danger Decal#14

Housing and handle assembly Diagram

Danger decal

Part #181391
In Stock
$17.82
Line Trimmer Cutting Blade#31

Motor and blade assembly Diagram

Bld asm (518

Part #180848
Replaced by #180183
?
Manufacturer substitution
This part replaces 180848. Substitute parts can look different from the original.
In Stock
$291.60
Screw#37

Housing and handle assembly Diagram

Screw

Part #181424

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

Bearing Strap#10

Housing and handle assembly Diagram

Bearing strap

Part #180170

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

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