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Porter Cable BN125A Brad Nailer Parts
100
Warning Label
$4.49
Part Number: 904673
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$4.49
103
$29.33
106
$17.33
108
$5.65
114
$57.00
117
$5.65
118
$2.03
119
$3.64
121
Driver Guide
$3.22
Part Number: 894753
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$3.22
202
$4.58
204
$4.49
207
$17.04
209
Trigger Valve Assembly
$22.99
Part Number: 895212
In Stock, 11 Available
Ships within 1 business day
$22.99
212
Trigger Pivot Pin (after serial number 80046)
$10.10
Part Number: 890722
In Stock, 13 Available
Ships within 1 business day
$10.10
213
Urethane Retainer
$2.35
Part Number: 890725
In Stock, 25+ Available
Ships within 1 business day
Note: After S/N 59314 $2.35
214
$1.99
301
$87.88
302
$3.30
304
$2.03
401
$32.05
402
Driver Guide Cover B
$20.77
Part Number: 894741
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$20.77
403
$6.90
404
Driver Guide
$35.05
Part Number: 895297
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$35.05
405
$36.92
408
$29.30
409
$6.61
410
Spring Guide
$2.05
Part Number: 894707
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$2.05
411
$2.03
412
$2.03
413
$11.51
414
416
$17.58
416
Safety B Assembly
$41.19
Part Number: 911687
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$41.19
417
$18.99
418
$19.08
419
$11.08
423
Non-Marking Rubber Nose Cushion
No Longer Available [ More Info ]
Part Number: 894742
Discontinued
Not Available
424
Magazine End Plate
$9.61
Part Number: 894704
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$9.61
425
428
429
$2.03
430
$5.61
431
$12.58
435
$2.64
856
Hex Wrench (3mm)
$6.52
Part Number: 884297
Ships In 14 - 20 Business Days
Ships in 14 - 20 business days
$6.52
856
Hex Wrench (4mm)
$6.52
Part Number: 884298
In Stock, 1 Available
Ships within 1 business day
Note: After S/N 010150 $6.52
856
$3.64
856
$9.16
1000
Overhaul Maintenance Kit
$63.89
Part Number: 903775
In Stock, 25+ Available
Ships within 1 business day
$63.89
1001
Driver Maintenance Kit For BN125A
$95.86
Part Number: 903776
In Stock, 1 Available
Ships within 1 business day
$95.86
2000
Find Part By Symptom
Choose a symptom to view parts that fix it.
| Leaks air from top |
| Won't fire |
| Driver won't return |
| Leaks air from trigger |
| Nails won't feed |
| Doesn't sink nails deep enough |
| Double fires |
| Show All Symptoms |
Popular Parts
Urethane Retainer
$2.35
890725
O-Ring
$3.99
A00104
Protective Cover
$2.03
884443
O-Ring
$2.03
883848
Piston Ring
$7.87
894734
O-Ring
$2.75
894748
O-Ring
$2.05
894746
Air Tool Oil
$3.64
884293
Repair Guides
Accessories
Accessories for the Porter Cable BN125A
Maintenance Kits
Questions & Answers
Part #894698 Exhaust Deflector not shown as a part that can be purchase.On my list it is shown as #101 Part #894698,can it be purchase
Fred
for model number BN125A
Hello Fred, Thank you for the question. The Exhaust Defector is only sold as part of the Housing Cap, Part Number: A01267 for this model. Hope this helps!
The porter cable brad nailer BN125A is able to fire only one nail at a time. The hammer pin gets stuck in the down position and has to be manually reset each time. Thank you Tim
Tim
for model number BN125A
Hi Tim, it could be as simple as oiling your gun as this can could be causing your issue, you may also need to replace the hammer pin it's self. Thank you for your question and good luck with your repair!
Is the piston ring supposed to have a break in it??, So it fits over piston
Steve
for model number BN 125A
hello Steve, Thank you for the question. Yes, The Piston Ring is suppose to have the split. Hope this helps!
Was using the nailer when it gave one burst of air and stopped working. Unplugged nailer,plugged it back in got nothing but air coming out exhaust. Pull trigger and air slows down. Nailer was oiled before use. Tired some suggestions found here ,nothing works.
John
for model number BN125A Brad nailer
Hi John, it sounds like a broken or faulty seal or o-ring causing air leak. If you have ruled it out you may have to take it to a technician. Thank you for your question and good luck with your repair!
No pressure at gun. Should the piston ring#112 have a break in it?
John Rosolino
for model number BN125A
Hi John, the piston ring part 894734 does have a break in it.Thank you for your question and good luck with your repair!
No pressure at gun. Have checked o-ring and piston ring. Both OK.
Where can this be serviced if all else fails?
John
for model number BN125A
Hi John, I would contact the manufacturer directly as we do not have information on local technicians.
Thank you for your question and good luck with your repair!
Can the o-ring be bad even though it looks ok?
John Rosolino
for model number Bn125a
Hi John, it is possible to worn/loose even if it looks ok. Thank you for your question and good luck with your repair!
I'm not sure which part I need. I think it is A00104. The original is an orange ring. Can I send a picture somehow?
Missy
for model number BN125A
Hello Missy and thanks for writing.
Please send a picture as an attachment to:
customerservice@ereplacementparts.com
We hope this helps. Please contact us anytime.
How do you take out the HD valve piston from the top casing part 108
Buddy
for model number Bn125a
Hello Buddy, Thank you for the question.
We do not have exact instructions for this repair but all you have to do is remove the housing cap then remove the parts to access part 108. Very simple repair. Also, replace the gasket head with this repair as gasket are a one time use only.
I hope this helps and good luck with your repair.
I have had this porter cable and when I went to use it, the air diverter was broke so I ordered a new cap and the diverter came with it. How to remove the inside hardware from the cap ??
John
for model number BN125A
Good Day John. Thank you for your question in regards to your unit (Model Number BN125A). The following URL is to a video that should assist you with the instructions on how to do this: https://www.youtube.com/watch?v=NfiZwRoofdI&feature=youtu.be. We hope this helps! Best Regards.
I'm not able to see in the parts list the plastic nose cover on top of gun
Jake
for model number BN125A
Hello Jake, thank you for your inquiry. The part you described does not appear in the parts list for this model. Please reach out to Porter Cable at 1 (888) 848-5175 directly to obtain the part number you need to order. Once you have this information, please feel free to check back with us for pricing and availability information. Thank you.
Discussion
Discussion for the Porter Cable BN125A Brad Nailer
Discussion is closed. To ask our experts a question about a part, use the Q&A feature on our product pages.
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 !
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
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
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
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
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
Question: Noze Cushion(no-mar)
binar
How many come in pack ?
Hello binar,
In answer to your question. The part number 894742 are sold individually and are not sold in a pack.
-WJA
In answer to your question. The part number 894742 are sold individually and are not sold in a pack.
-WJA
Question: Porter Cable Finish Nailer Issue...
988487
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:
Thanks for any help :confused:
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
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
Thank you for the reply, I will try this today when I get home.
