Lawn Edger

Model # 25A-550A163 Official Bolens edger

Here are the diagrams and repair parts for Official Bolens 25A-550A163 edger, as well as links to manuals and error code tables, if available.

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Browse Parts for
25A-550A163 Edger
Lawn Tractor Screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599) 710-0599
Lawn tractor screw (replaces 01000628, 01000865, 1186307, 1186308, 791-180288, 791-683298, 910-0599)

Part #710-0599

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Knob Assembly 720-0241
#9

Handle diagram

Knob assembly

Part #720-0241

Replaced by #720-04072A

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Manufacturer substitution
This part replaces 720-0241. Substitute parts can look different from the original.
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Lock Washer 736-0119
#14

Spindle assembly diagram

Lock washer

Part #736-0119

Replaced by #936-0119

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This part replaces 736-0119. Substitute parts can look different from the original.
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$6.05
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Yard Machines Lawn Mower Wheel 734-1987
#4

Wheel assembly diagram

Yard machines lawn mower wheel

Part #734-1987

$26.80
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Edger Blade Control Cable 746-04035
#13A

Handle diagram

Edger blade control cable

Part #746-04035

Replaced by #946-04035

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This part replaces 746-04035. Substitute parts can look different from the original.
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$27.11
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Hex Flange 712-3027
#6

Spindle assembly diagram

Hex flange

Part #712-3027

Replaced by #912-3027

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This part replaces 712-3027. Substitute parts can look different from the original.
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$5.44
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Belt Guard 781-0086
#28

Spindle assembly diagram

Belt guard

Part #781-0086

Replaced by #781-0427-0637

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This part replaces 781-0086. Substitute parts can look different from the original.
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$26.77
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Yard-man Edger Depth Control Torsion Spring 732-0188A
#13

Spindle assembly diagram

Yard-man edger depth control torsion spring

Part #732-0188A

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$16.52
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Lawn Tractor Hex Bolt 710-3008
#4

Handle diagram

Lawn tractor hex bolt

Part #710-3008

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$4.62
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Grease Fitting 737-3000
#18

Spindle assembly diagram

Grease fitting

Part #737-3000

Replaced by #937-3000

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Manufacturer substitution
This part replaces 737-3000. Substitute parts can look different from the original.
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$6.38
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Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn edgers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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…