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Porter Cable BN125A Brad Nailer Parts

Page A

Download Diagram

Fig #	Part #	Img	Part Name	Availability	Price	Qty
99	893576		Spec Info Label	Ships in 7 - 12 business days	$1.03
100	904673		Warning Label	Ships in 7 - 12 business days	$3.21
102	894752		Bolt	Ships in 7 - 12 business days	$2.74
103	A01267		Housing Cap	Ships in 7 - 12 business days	$20.09
104	891469		Seal	In stock 8 available	$3.65
105	A02160		Spring	Ships in 7 - 12 business days	$2.45
106	894737		Head Valve Seal	Ships in 7 - 12 business days	$11.91
107	894748		O-Ring	In stock 6 available	$1.90
108	894731		HD. Valve Piston	Ships in 7 - 12 business days	$4.04
109	A00104		O-Ring	In stock 20 available	$2.61
110	894697		Gasket Head	In stock 7 available	$4.43
111	894736		Collar	Ships in 7 - 12 business days	$1.90
112	894734		Piston Ring	In stock 10 available	$5.41
113	894746		O-Ring	In stock 13 available	$1.46
114	894689		Driver Assembly S7	In stock 3 available	$40.83
Fig #	Part #	Img	Part Name	Availability	Price
115	A00971		Cylinder	Ships in 7 - 12 business days	$14.82
116	894893		O-Ring	In stock 6 available	$1.90
117	894733		Cylinder Spacer	Ships in 7 - 12 business days	$4.04
118	883924		O-Ring	In stock 15 available	$1.29
119	894735		Cyl Check Seal	Ships in 7 - 12 business days	$2.61
120	898483		Bumper	Ships in 7 - 12 business days	$9.71
121	894753		Driver Guide	Ships in 7 - 12 business days	$2.31
201	883844		Seal	Ships in 7 - 12 business days	$1.08
202	894694		Trigger Valve Head	Ships in 7 - 12 business days	$3.28
203	888890		Spring	Ships in 7 - 12 business days	$1.08
204	913374		Trigger Valve Stem	Ships in 7 - 12 business days	$3.21
205	883848		O-Ring	In stock 13 available	$1.08
206	883849		O-Ring	In stock 10 available	$1.08
207	894894		Trigger Valve Guide	In stock 1 available	$12.21
208	894758		Spring	Ships in 7 - 12 business days	$0.91
Fig #	Part #	Img	Part Name	Availability	Price
209	895212		Trigger Valve Assembly	Ships in 7 - 12 business days	$15.79
212	890722		Trigger Pivot Pin (after serial number 80046)	Ships in 7 - 12 business days	$7.24
213	890725		Urethane Retainer	In stock 6 available	$1.68
214	883884		Rolled Pin	In stock 6 available	$1.08
215	903621		O-Ring	Ships in 7 - 12 business days	$1.39
301	895712		Housing	Ships in 7 - 12 business days	$64.87
302	884529		O-Ring	Ships in 7 - 12 business days	$2.37
303	883858		End Cap	Ships in 7 - 12 business days	$7.88
304	884443		Protective Cover	In stock 22 available	$1.39
401	895296		Driver Guide Cover	Ships in 7 - 12 business days	$22.96
402	894741		Driver Guide Cover B	Ships in 7 - 12 business days	$15.79
403	894755		Pin	Ships in 7 - 12 business days	$4.74
404	895297		Driver Guide	Ships in 7 - 12 business days	$25.11
405	895292		Magazine A	Ships in 7 - 12 business days	$26.46
406	883908		Wear Plate	Ships in 7 - 12 business days	$1.60
Fig #	Part #	Img	Part Name	Availability	Price
408	895293		Magazine B	Ships in 7 - 12 business days	$22.28
409	894756		Pusher	Ships in 7 - 12 business days	$4.74
410	894707		Spring Guide	Ships in 7 - 12 business days	$1.46
411	894774		Spring	Ships in 7 - 12 business days	$0.91
412	894780		Spring Pin	Ships in 7 - 12 business days	$0.91
413	894716		Latch	Ships in 7 - 12 business days	$9.39
414	894754		Magazine Spacer	Ships in 7 - 12 business days	$2.31
415	910721		Spring	Ships in 7 - 12 business days	$1.00
416	894773		Safety B	Ships in 7 - 12 business days	$12.58
416	911687		Safety B Assembly	Ships in 7 - 12 business days	$29.52
417	894702		Safety A	Ships in 7 - 12 business days	$13.05
418	894775		Thumb Wheel	Ships in 7 - 12 business days	$13.67
419	894765		Safety	Ships in 7 - 12 business days	$7.93
420	886218		Ring	Ships in 7 - 12 business days	$1.00
421	887969		Safety Spring	Ships in 7 - 12 business days	$2.13
Fig #	Part #	Img	Part Name	Availability	Price
422	913102		Safety Guide	Ships in 7 - 12 business days	$3.21
423	894742		Nose Cushion (No-Mar)	Ships in 7 - 12 business days	$4.74
424	894704		Magazine End Plate	Ships in 7 - 12 business days	$6.89
425	894740		Cushion End Plate	Ships in 7 - 12 business days	$4.43
426	883866		Bolt	Ships in 7 - 12 business days	$1.08
427	894781		Nut	Ships in 7 - 12 business days	$0.91
428	894706		Magazine Bracket	Ships in 7 - 12 business days	$12.21
429	894751		Bolt	Ships in 7 - 12 business days	$0.91
430	894739		Magazine Latch	Ships in 7 - 12 business days	$4.00
431	894761		Latch Pin	Ships in 7 - 12 business days	$9.01
432	892310		Spring	Ships in 7 - 12 business days	$1.60
433	886069		E-Ring	Ships in 7 - 12 business days	$1.00
434	894777		Anchor Block	Ships in 7 - 12 business days	$11.22
435	894745		Bolt	Ships in 7 - 12 business days	$1.90
436	886078		Lock Washer	Ships in 7 - 12 business days	$1.42
Fig #	Part #	Img	Part Name	Availability	Price
437	883878		Bolt	Ships in 7 - 12 business days	$1.08
856	884297		Hex Wrench (3mm)	Ships in 7 - 12 business days	$4.66
856	884298		Hex Wrench (4mm)	Ships in 7 - 12 business days	$4.66
856	884293		Air Tool Oil (18CC)	In stock 1 available	$2.61
856	893579		Safety Glasses	Ships in 7 - 12 business days	$8.48
1000	903775		Overhaul Maintenance Kit For NS150A	In stock 6 available	$45.78
1001	903776		Driver Maintenance Kit For BN125A	Ships in 7 - 12 business days	$68.70
2000	5140028-05		Carrying Case	Ships in 7 - 12 business days	$24.42

Nailer Parts

Discuss

Repair Videos

Articles

Popular Parts

Nose Cushion (No-Mar) $4.74	Urethane Retainer $1.68
Protective Cover $1.39	O-Ring $2.61
O-Ring $1.08	Air Tool Oil (18CC) $2.61
O-Ring $1.46	O-Ring $1.90

Repair Videos

How to Install an Overhaul Kit in a Porter Cable Nail Gun

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

Repair Articles

How to Install an Overhaul Kit in a Porter Cable Nail Gun
This article will teach you to install an overhaul kit in a Porter Cable nail gun, an important repair for anyone with a nail gun leaking air from the nose, head or trigger.

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

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.

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.

Discussion

Discussion for the Porter Cable BN125A Brad Nailer

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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:

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

Reply: Porter Cable Finish Nailer Issue...

Fire8033

Thank you for the reply, I will try this today when I get home.

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.

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

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

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?

Question: Brad Nailer Not Firing

Danny Rodriguez

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????

Question: Operating Brad Nailor In Cold We...

kripm

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.

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:
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