Hedge Trimmer

Model # 31581521 Official Craftsman 18" hedge trimmer

Here are the diagrams and repair parts for Official Craftsman 31581521 18" hedge trimmer, as well as links to manuals and error code tables, if available.

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Browse Parts for
31581521 18" Hedge Trimmer
Screw 1-616081-09
#25

Unit parts diagram

Screw

Part #1-616081-09

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

Gear With Pin 1-616255-1
#6

Unit parts diagram

Gear with pin

Part #1-616255-1

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

Blade Seal 1-606002-01
#3

Unit parts diagram

Blade seal

Part #1-606002-01

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

Housing Cover 5-607780-02
#24

Unit parts diagram

Housing cover

Part #5-607780-02

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

Washer 1-706382-24
#40

Unit parts diagram

Washer

Part #1-706382-24

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

Screw 1-615486-09
#15

Unit parts diagram

Screw

Part #1-615486-09

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

Screw 1-616081-05
#29

Unit parts diagram

Screw

Part #1-616081-05

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

Cord 1-616809-01
#11

Unit parts diagram

Cord

Part #1-616809-01

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

Blade Assembly 2-607567-02
#18

Unit parts diagram

Blade assembly

Part #2-607567-02

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

Handle Assembly 3-607775-01
#22

Unit parts diagram

Handle assembly

Part #3-607775-01

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

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 hedge trimmers

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

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Top 10 electric lawn and garden tools for 2023

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