Repair Parts Home    Power Tool Parts    Porter Cable Parts    Porter Cable Finish Nailer Parts    Porter Cable BN125A Brad Nailer Parts
Porter Cable BN125A Brad Nailer porter_cable logo

 Porter Cable BN125A Brad Nailer Parts

Page A
Click to close
 Fig # Img Part Name Availability Price
99
Spec Info Label
Part #: 893576
Ships in 10 - 16 business days
 $1.27
Add To Cart
100
Warning Label
Warning Label
Part #: 904673
In stock
2 available
 $3.96
Add To Cart
102
Bolt
Bolt
Part #: 894752
Ships in 10 - 16 business days
 $3.36
Add To Cart
104
Seal
Seal
Part #: 891469
In stock
6 available
 $4.49
Add To Cart
105
Spring
Spring
Part #: A02160
In stock
5 available
 $3.99
Add To Cart
106
Head Valve Seal
Head Valve Seal
Part #: 894737
In stock
6 available
 $14.63
Add To Cart
107
O-Ring
O-Ring
Part #: 894748
In stock
3 available
 $3.99
Add To Cart
108
HD. Valve Piston
HD. Valve Piston
Part #: 894731
In stock
4 available
 $4.97
Add To Cart
109
O-Ring
O-Ring
Part #: A00104
In stock
25+ available
 $3.99
Add To Cart
110
Gasket Head
Gasket Head
Part #: 894697
In stock
12 available
 $5.45
Add To Cart
111
Collar
Collar
Part #: 894736
In stock
5 available
 $3.99
Add To Cart
112
Piston Ring
Piston Ring
Part #: 894734
In stock
16 available
 $6.65
Add To Cart
113
O-Ring
O-Ring
Part #: 894746
In stock
9 available
 $3.99
Add To Cart
114
Driver Assembly S7
Driver Assembly S7
Part #: 894689
In stock
9 available
 $50.16
Add To Cart
115
Cylinder
Cylinder
Part #: A00971
In stock
4 available
 $18.19
Add To Cart
Fig #ImgPart NameAvailabilityPrice
116
O-Ring
O-Ring
Part #: 894893
In stock
9 available
 $3.99
Add To Cart
117
Cylinder Spacer
Cylinder Spacer
Part #: 894733
In stock
4 available
 $4.97
Add To Cart
118
O-Ring
O-Ring
Part #: 883924
In stock
9 available
 $1.58
Add To Cart
119
Cyl Check Seal
Cyl Check Seal
Part #: 894735
In stock
6 available
 $3.99
Add To Cart
120
Bumper
Bumper
Part #: 898483
In stock
11 available
 $11.92
Add To Cart
121
Driver Guide
Driver Guide
Part #: 894753
In stock
2 available
 $2.84
Add To Cart
201
Seal
Seal
Part #: 883844
In stock
13 available
 $1.33
Add To Cart
202
Trigger Valve Head
Trigger Valve Head
Part #: 894694
In stock
2 available
 $4.03
Add To Cart
203
Spring
Spring
Part #: 888890
In stock
4 available
 $1.33
Add To Cart
204
Trigger Valve Stem
Trigger Valve Stem
Part #: 913374
In stock
1 available
 $3.96
Add To Cart
205
O-Ring
O-Ring
Part #: 883848
In stock
8 available
 $1.33
Add To Cart
206
O-Ring
O-Ring
Part #: 883849
In stock
9 available
 $1.33
Add To Cart
207
Trigger Valve Guide
Trigger Valve Guide
Part #: 894894
Ships in 10 - 16 business days
 $15.00
Add To Cart
208
Spring
Spring
Part #: 894758
In stock
4 available
 $3.99
Add To Cart
209
Trigger Valve Assembly
Trigger Valve Assembly
Part #: 895212
In stock
12 available
 $19.39
Add To Cart
Fig #ImgPart NameAvailabilityPrice
212
Trigger Pivot Pin (after serial number 80046)
Trigger Pivot Pin (after serial number 80046)
Part #: 890722
In stock
12 available
 $8.89
Add To Cart
213
Urethane Retainer
Urethane Retainer
Part #: 890725
In stock
25+ available
 $2.99
Add To Cart
214
Rolled Pin
Rolled Pin
Part #: 883884
In stock
9 available
 $1.33
Add To Cart
215
O-Ring
O-Ring
Part #: 903621
In stock
4 available
 $3.99
Add To Cart
301
Housing
Part #: 895712
Ships in 10 - 16 business days
 $79.67
Add To Cart
302
O-Ring
O-Ring
Part #: 884529
In stock
9 available
 $3.99
Add To Cart
303
End Cap
End Cap
Part #: 883858
In stock
3 available
 $9.68
Add To Cart
304
Protective Cover
Protective Cover
Part #: 884443
In stock
25+ available
 $2.99
Add To Cart
401
Driver Guide Cover
Driver Guide Cover
Part #: 895296
In stock
3 available
 $28.20
Add To Cart
402
Driver Guide Cover B
Driver Guide Cover B
Part #: 894741
Ships in 10 - 16 business days
 $19.39
Add To Cart
403
Pin
Pin
Part #: 894755
In stock
3 available
 $5.81
Add To Cart
404
Driver Guide
Driver Guide
Part #: 895297
In stock
1 available
 $30.85
Add To Cart
405
Magazine A
Part #: 895292
Ships in 10 - 16 business days
 $32.49
Add To Cart
406
Wear Plate
Wear Plate
Part #: 883908
Ships in 10 - 16 business days
 $1.96
Add To Cart
408
Magazine B
Part #: 895293
Ships in 10 - 16 business days
 $27.36
Add To Cart
Fig #ImgPart NameAvailabilityPrice
409
Pusher
Pusher
Part #: 894756
Ships in 10 - 16 business days
 $5.81
Add To Cart
410
Spring Guide
Part #: 894707
Ships in 10 - 16 business days
 $1.80
Add To Cart
411
Spring
Spring
Part #: 894774
In stock
2 available
 $1.12
Add To Cart
412
Spring Pin
Spring Pin
Part #: 894780
Ships in 10 - 16 business days
 $1.12
Add To Cart
413
Latch
Latch
Part #: 894716
In stock
1 available
 $11.54
Add To Cart
414
Magazine Spacer
Magazine Spacer
Part #: 894754
Ships in 10 - 16 business days
 $2.84
Add To Cart
Safety B Assembly
Safety B Assembly
Part #: 911687
Ships in 10 - 16 business days
 $36.25
Add To Cart
Safety B
Safety B
Part #: 894773
Ships in 10 - 16 business days
 $15.47
Add To Cart
417
Safety A
Safety A
Part #: 894702
Ships in 10 - 16 business days
 $16.03
Add To Cart
418
Thumb Wheel
Thumb Wheel
Part #: 894775
In stock
2 available
 $16.79
Add To Cart
419
Safety
Safety
Part #: 894765
In stock
2 available
 $9.75
Add To Cart
420
Ring
Ring
Part #: 886218
Backorder:
Unavailable until 04/27/2016
 $3.99
Add To Cart
421
Safety Spring
Safety Spring
Part #: 887969
In stock
5 available
 $2.63
Add To Cart
422
Safety Guide
Safety Guide
Part #: 913102
In stock
1 available
 $3.96
Add To Cart
423
Nose Cushion (No-Mar)
Nose Cushion (No-Mar)
Part #: 894742
In stock
25+ available
 $5.82
Add To Cart
Fig #ImgPart NameAvailabilityPrice
424
Magazine End Plate
Magazine End Plate
Part #: 894704
Ships in 10 - 16 business days
 $8.46
Add To Cart
425
Cushion End Plate
Cushion End Plate
Part #: 894740
In stock
5 available
 $5.45
Add To Cart
426
Bolt
Bolt
Part #: 883866
In stock
4 available
 $3.99
Add To Cart
427
Nut
Nut Obsolete - Limited Quantity
Part #: 894781
In stock
1 available
 $1.12
Add To Cart
428
Magazine Bracket
Magazine Bracket
Part #: 894706
Ships in 10 - 16 business days
 $15.00
Add To Cart
429
Bolt
Bolt
Part #: 894751
Ships in 10 - 16 business days
 $1.12
Add To Cart
430
Magazine Latch
Magazine Latch
Part #: 894739
In stock
1 available
 $4.92
Add To Cart
431
Latch Pin
Latch Pin
Part #: 894761
In stock
2 available
 $11.06
Add To Cart
432
Spring
Spring
Part #: 892310
In stock
3 available
 $1.96
Add To Cart
433
E-Ring
E-Ring
Part #: 886069
In stock
10 available
 $3.99
Add To Cart
434
Anchor Block
Anchor Block
Part #: 894777
In stock
2 available
 $13.79
Add To Cart
435
Bolt
Bolt
Part #: 894745
In stock
1 available
 $2.34
Add To Cart
436
Lock Washer
Lock Washer
Part #: 886078
In stock
4 available
 $1.74
Add To Cart
437
Bolt
Bolt
Part #: 883878
Ships in 10 - 16 business days
 $1.32
Add To Cart
103
Housing Cap
Housing Cap
Part #: A01267
In stock
12 available
 $24.67
Add To Cart
415
Spring
Spring
Part #: 910721
In stock
1 available
 $1.23
Add To Cart
Safety B Assembly
Safety B Assembly
Part #: 911687
Ships in 10 - 16 business days
 $36.25
Add To Cart
Safety B
Safety B
Part #: 894773
Ships in 10 - 16 business days
 $15.47
Add To Cart
856
Hex Wrench (3mm)
Hex Wrench (3mm)
Part #: 884297
In stock
2 available
 $5.73
Add To Cart
1000
Overhaul Maintenance Kit
Overhaul Maintenance Kit
Part #: 903775
In stock
16 available
 $56.25
Add To Cart
1001
Driver Maintenance Kit For BN125A
Driver Maintenance Kit For BN125A
Part #: 903776
In stock
3 available
 $80.67
Add To Cart
2000
Carrying Case
Carrying Case
Part #: 5140028-05
In stock
4 available
 $29.99
Add To Cart

Enter your engine's type number in this search field to show the parts that match your engine.

Your engine's type number is the second part of the model number stamped on your Briggs & Stratton engine (see picture).

Nailer Parts

Repair Guides
Power Tool Care and Maintenance 101
Power Tool Care and Maintenance 101

This article suggests guidelines for power tool care and maintenance. It also describes information tools available at eReplacementParts.com.

Drilling, Fastening, and Hammering Power Tools
Drilling, Fastening, and Hammering Power Tools

This article lists the major categories of drilling, fastening, and hammering tools, and explains the basic applications, types, and features of each.

How to Diagnose Power Air Nailers
How to Diagnose Power Air Nailers

This article discusses the common problems that air nailers encounter. It offers steps for troubleshooting each symptom and guidelines for repair.

How to Install a Driver Maintenance Kit on a Porter Cable Nail Gun

This video will teach you to remove the piston and driver assembly from a nail gun, allowing you to replace a broken driver or access other parts that may be reducing your nail gun's performance.

Discussion
Discussion for the Porter Cable BN125A Brad Nailer

Post a Comment
Login or signup to comment.
Login or signup to comment.
Ask a question, answer a question, or post a comment!
  • Subject:
  •  
  • Comment:
  •  
1572013
Question: Porter Cable Bn125a

1572013

I'm trying to put the driver back into the cylinder and I can't get the O-ring to go in, new O-ring, so frustrated !
WJA
Reply: Porter Cable Bn125a

WJA

Hello 1572013,

We have an article and video on How to Install a Driver Maintenance Kit on a Porter Cable Nail Gun. I hope this will end your frustration.

-WJA
1478288
Question: Porter Cable BN125A

1478288

I have a broken o-ring in the head valve, and have ordered a new one.
I would like to remove the head valve and inspect it, however I need help on getting the head valve out of the housing.

Is this a press fit?
Is there a trick to getting it out of the housing?
jagraybill
Question: Jamesg

jagraybill

Bn 125 nailer- Gun only( thuds) doesn't shoot nail. Remove air supply and reattach air supply while holding trigger and touching wood gun will shoot. Works for a while and then must repeat the process
Tinkerdave
Reply: Jamesg

Tinkerdave

Hi jagraybill,
You will need to replace the head valve o-rings. Whats happening is when you pull the trigger the head valve should snap up but because the o-rings are worn in the head valve the valve gets slightly cocked in the head cap.When you hold the trigger and connect the hose the head valve gets jolted and drop back down on the cylinder.Replace the o-rings and you should be fine.Hope that helps.Good luck.
Tinker
I have a 2 year old PC brad nailer. It has been rarely used over a period of 2 years. Went to use it and air just blows out the top of the unit.

What is the problem
binar
Question: Noze Cushion(no-mar)

binar

How many come in pack ?
WJA
Reply: Noze Cushion(no-mar)

WJA

Hello binar,

In answer to your question. The part number 894742 are sold individually and are not sold in a pack.

-WJA
I have a Porter Cable BN125A Finish Nailer that when the trigger is pulled will only make a clicking/short burts of air noise. I have checked the piston and the air supply which is fine. Any suggestions???? Almost acts like its not getting enough air but I know it is.

Thanks for any help :confused:
Tinkerdave
Reply: Porter Cable Finish Nailer Issue...

Tinkerdave

Hi Fire8033,
There's a couple of things to check on this tool . Take the nails out of the tool then place the nose of the tool on a board and press down and engage the safety while pulling the trigger.While your doing this connect and disconnect the air hose a couple of times and see if the tool starts working.What this does is check to see if the head valve is cock in the head and not being allowed to move in the head.If that won't help take a small screw driver and slide it between the trigger and trigger valve and see if the tool can be fired manually.This checks for bent or worn linkage on the trip arm. If it still won't work remove the head and with a wood dowel or other soft object see if you can move the piston up and down the cylinder.This checks for any nail or part of the nail shank being stuck in the channel of the magazine blocking the cycling of the driver. One of these things should be your problem.Hope that helps.Good luck.
Tinker
Fire8033
Reply: Porter Cable Finish Nailer Issue...

Fire8033

Thank you for the reply, I will try this today when I get home.
696742
Question: Porter Cable BN 125A Finish Nail...

wesleycharlessmith

Hello,

I have a porter cable BN125A and the nose shoe recently just fell off. I don't know if its missing a piece or something but I cannot get it to stay on for anything. Does anyone know if they just slide on and stay or are they supposed to be glues or something. The nailer works now but marks up the trim I am nailing.

Porter Cable BN125A Parts List and Diagram : eReplacementParts.com

Item 423

-Thanks, Wes.
UtahAV
Reply: Porter Cable BN 125A Finish Nail...

UtahAV

Hi Wes,

The cushion does just slide on. There are two grooves on the inner sides of the cushion that slide around the metal nose piece. Make sure that the nose piece slides into the grooves and it should stay put.

I hope this helps!

-UtahAV
-Mark
Rudy
Question: Brad Nailer Won

Rudy

I have a brad nailer, model #BN125A that no longer fires. Upon examination of the piston, there appears to be a crack on the o-ring. Will this cause the malfunction?
Thank you
monty
Question: Brad Nailer Not Firing

monty

I have a Porter Cable brad nailer #BN125A that I had not used in a while. I loaded a strip of nails and nailed 2 or 3 nails and it stopped sending out nails, it sounds like not enough air pressure is going through it, what could cause it to do this?
Danny Rodriguez
Question: Brad Nailer Not Firing

Danny Rodriguez

I have a Porter Cable brad nailer #BN125A that I had not used in a while. I loaded a strip of nails and nailed 2 or 3 nails and it stopped sending out nails, it sounds like not enough air pressure is going through it, what could cause it to do this?
dennis roth
Question: Porter Cable Bn125 Pinner

dennis roth

air seeping out rear housing cover. cant get off,tried impact gun & pipe wrench! wont budge.whats up here????
I have a Porter Cable 125A brad nailor in an unheated shop. It leaks air continuously out of the top ( above the piston ) when I try to use it in cold weather. Is there a temperature limitation below which these things don't operate properly or do I need a repair. Right now my plan is to bring it inside, let it warm up and try it.
cmoorejack
Reply: Operating Brad Nailor In Cold We...

cmoorejack

Hey kripm,
most likely you need to service your tool..parts available at ereplacementparts.com..they have individual parts along with an overhaul kit if needed..
colder temps are hard on all kinds of tools..and especially air tools...they also make a winter oil for pneumatics for really cold temps..
hey..spring is almost here..!
hope this helps..:)
Craig
Accessories
Accessories for the BN125A

Maintenance Kits:
See more maintenance kits 
903776
Driver Maintenance Kit For BN125A
$80.67

903775
Overhaul Maintenance Kit
$56.25

fancyboxy