Porter Cable
Power Nailer

Model # BN125A Official Porter Cable brad nailer

Here are the diagrams and repair parts for Official Porter Cable BN125A brad nailer, 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 91 parts  |

Guide 894894
#207

Brad nailer diagram

Guide

Part #894894

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

Bolt 894745
#435

Brad nailer diagram

Bolt

Part #894745

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

Seal 894737
#106

Brad nailer diagram

Seal

Part #894737

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

Porter Cable Bracket 894706
#428

Brad nailer diagram

Porter cable bracket

Part #894706

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

Latch 894716
#413

Brad nailer diagram

Latch

Part #894716

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

Plate Wear 883908
#406

Brad nailer diagram

Plate wear

Part #883908

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

Porter O-ring 883848
#205

Brad nailer diagram

Porter o-ring

Part #883848

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

Porter Cable Pusher 894756
#409

Brad nailer diagram

Porter cable pusher

Part #894756

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

O-ring 894893
#116

Brad nailer diagram

O-ring

Part #894893

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

Porter Cable End Plate 894740
#425

Brad nailer diagram

Porter cable end plate

Part #894740

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…