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Toro
Electric Line Trimmer

Model # 51803 Official Toro trimmer

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

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

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Model diagram and schematic

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ALL PARTS
Showing 10 of 40 parts  |
Bld Asm (518 181491

#NI

All parts diagram

Bld asm (518

Part #181491

$326.69
In Stock
Handle 180049
#3

Housing and handle assembly diagram

Handle

Part #180049

$93.31
In Stock
Housing Assembly 181485
#12

Housing and handle assembly diagram

Housing assembly

Part #181485

$275.45
In Stock
Lock Off Button 181484
#7

Housing and handle assembly diagram

Lock off button

Part #181484

$10.26
In Stock
Gear Assembly 181490
#30

Motor and blade assembly diagram

Gear assembly

Part #181490

$132.90
In Stock
Danger Decal 181391
#14

Housing and handle assembly diagram

Danger decal

Part #181391

$23.20
In Stock
Armature 181489
#21

Motor and blade assembly diagram

Armature

Part #181489

$137.42
In Stock
Bld Asm (518 180848
#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.
$310.55
In Stock
Screw 181424
#37

Housing and handle assembly diagram

Screw

Part #181424

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

Blade Cover 181492
#34

Motor and blade assembly diagram

Blade cover

Part #181492

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

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