Model # FN250B Official Porter Cable finish nailer

Here are the diagrams and repair parts for Official Porter Cable FN250B finish nailer, 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.

Owner’s manual

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 94 parts |

#432

Finish nailer diagram

Thumb whl

Part #894775

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

#401

Finish nailer diagram

Bolt

Part #894745

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

#219

Finish nailer diagram

Spring

Part #904701

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

#111

Finish nailer diagram

O-ring

Part #883837

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

#408

Finish nailer diagram

Porter cable latch

Part #904708

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

#206

Finish nailer diagram

Porter o-ring

Part #883938

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

#409

Finish nailer diagram

Porter cable bolt

Part #904709

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

#411

Finish nailer diagram

Porter cable spring

Part #904710

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

#202

Finish nailer diagram

Porter o-ring

Part #897341

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

#217

Finish nailer diagram

Part #897351

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

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

View all

How do I tune up my snowblower?

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Why won't my snowblower throw snow far enough?

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

What should I do about a damaged snowblower tire?

Main causes: punctured tire, damaged rim…

Why does my snowblower engine run rough?

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Why won't my snowblower start?

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Why doesn't my snowblower self propel?

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

Why won't my snowblower chute turn?

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

Repair guides for gas snowblowers

These step-by-step repair guides will help you safely fix what’s broken on your snowblower.

View all

How to adjust snowblower engine valve lash

Adjust the engine valve lash on your snowblower to keep the engine starting and running smoothly.…

Repair difficulty

Time required

15 minutes or less

How to adjust snowblower skid shoes

To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…

Repair difficulty

Time required

15 minutes or less

How to replace a snowblower shave plate

Follow the 7 easy steps in this repair guide/video to replace a worn out shave plate on your snowblower.…

Repair difficulty

Time required

15 minutes or less

Articles and videos for gas snowblowers

Use the advice and tips in these articles and videos to get the most out of your snowblower.

View all

Model # FN250B Official Porter Cable finish nailer

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas snowblowers

How do I tune up my snowblower?

Why won't my snowblower throw snow far enough?

Why does my snowblower stop running after a few seconds?

What should I do about a damaged snowblower tire?

Why does my snowblower engine run rough?

Why won't my snowblower start?

Why doesn't my snowblower self propel?

Why won't my snowblower chute turn?

Why won't my snowblower clear snow well?

Repair guides for gas snowblowers

How to adjust snowblower engine valve lash

How to adjust snowblower skid shoes

How to replace a snowblower shave plate

Articles and videos for gas snowblowers

How to tune up a snowblower video

Start-of-winter snowblower care

How to store a snowblower

Parts & More

Stay Connected

Quick links

Let us help you

More resources