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Model # 425 Official Porter Cable impact wrench

Here are the diagrams and repair parts for Official Porter Cable 425 impact wrench, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 68 parts  |

Sears Lock Washer 802648
#106

Impact wrench diagram

Sears lock washer

Part #802648

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

Spring 842610
#115

Impact wrench diagram

Spring

Part #842610

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

Screw 801374
#110

Impact wrench diagram

Screw

Part #801374

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

Screw 854805
#135

Impact wrench diagram

Screw

Part #854805

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

Sears Grnd Screw 844107
#120

Impact wrench diagram

Sears grnd screw

Part #844107

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

Washer 802430
#125

Impact wrench diagram

Washer

Part #802430

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

Bearing 857399
#11A

Impact wrench diagram

Bearing

Part #857399

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

Bearing 839837
#14

Impact wrench diagram

Bearing

Part #839837

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

Terminal 849314
#133A

Impact wrench diagram

Terminal

Part #849314

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

Reliever 843464
#122

Impact wrench diagram

Reliever

Part #843464

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

Articles and videos for gas walk-behind mowers

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

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

A blade obstruction, bad recoil starter or locked-up engine can prevent the pull cord on your mower from working. See ho…