MTD
Lawn Edger

Model # 25B-554K799 Official MTD edger/trencher

Here are the diagrams and repair parts for Official MTD 25B-554K799 edger/trencher, 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 230 parts  |

Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
#17

Lawn mower diagram

Lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)

Part #712-04063

BEST SELLER
This item is not returnable
$4.09
20% OFF Phone Price : $5.09
In Stock
Lawn & Garden Equipment Hex Flange Nut (replaces 753-05549, 912-0417a) 712-0417A
#19

Lawn mower diagram

Lawn & garden equipment hex flange nut (replaces 753-05549, 912-0417a)

Part #712-0417A

BEST SELLER
$7.66
20% OFF MSRP : $9.60
In Stock
Edger Blade (replaces 781-0748, Oem-781-0748) 781-0748-0637
#62

Lawn mower diagram

Edger blade (replaces 781-0748, oem-781-0748)

Part #781-0748-0637

BEST SELLER

Get free shipping with Automatic Reorder

$30.19
14% OFF Phone Price : $35.19
In Stock
Lawn Mower Handle Knob (replaces 01000382, 113589, 720-04072, 720-04125) 720-04072A
#24

Lawn mower diagram

Lawn mower handle knob (replaces 01000382, 113589, 720-04072, 720-04125)

Part #720-04072A

BEST SELLER
$8.69
21% OFF MSRP : $11.00
In Stock
Lawn & Garden Equipment Flange Nut 712-04217
#66

Lawn mower diagram

Lawn & garden equipment flange nut

Part #712-04217

BEST SELLER
$6.58
13% OFF Phone Price : $7.58
In Stock
Lawn & Garden Equipment Push Cap 726-0299
#25

Lawn mower diagram

Lawn & garden equipment push cap

Part #726-0299

This item is not returnable
$12.39
14% OFF Phone Price : $14.39
In Stock
Edger Belt Guard (replaces 781-0086-0637, 781-0427) 781-0427-0637
#59

Lawn mower diagram

Edger belt guard (replaces 781-0086-0637, 781-0427)

Part #781-0427-0637

This item is not returnable
$26.77
16% OFF Phone Price : $31.77
In Stock
Edger Blade Adjuster Rod (replaces 747-04110) 747-04110A
#47

Lawn mower diagram

Edger blade adjuster rod (replaces 747-04110)

Part #747-04110A

This item is not returnable
$22.41
18% OFF Phone Price : $27.41
In Stock
Lawn & Garden Equipment Guide Bolt 710-1205
#13

Lawn mower diagram

Lawn & garden equipment guide bolt

Part #710-1205

This item is not returnable
$5.01
17% OFF Phone Price : $6.01
In Stock
Lawn & Garden Equipment Wing Nut (replaces 01002925, 920-0279) 720-0279
#23

Lawn mower diagram

Lawn & garden equipment wing nut (replaces 01002925, 920-0279)

Part #720-0279

This item is not returnable
$6.87
13% OFF Phone Price : $7.87
In Stock

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace the evaporator fan motor in a top-freezer refrigerator

How to replace the evaporator fan motor in a top-freezer refrigerator

The evaporator fan motor blows air across the evaporator coils and through the refrigerator cabinet for cooling. Replace…

Repair difficulty
Time required
 15 minutes or less
How to replace the compressor start relay in a top-freezer refrigerator

How to replace the compressor start relay in a top-freezer refrigerator

The compressor start relay starts the compressor and shuts it off if the motor overheats. Replace the start relay if it'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn edgers

Top 10 electric lawn and garden tools for 2023

Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…