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Porter Cable BN125 Brad Nailer Parts

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Download Diagram

Fig #	Part #	Img	Part Name	Availability	Price	Qty
99	883590		Information Plate Obsolete - Not Available	Discontinued	$0.00	N/A
100	883588		Warning Plate	Ships in 9 - 11 business days	$1.31
101	883826		Bolt	Ships in 9 - 11 business days	$1.16
102	883827		Spring Washer	Ships in 9 - 11 business days	$1.16
103	895705		Cap Obsolete - Not Available	Discontinued	$0.00	N/A
104	891469		Seal	In stock 2 available	$3.93
105	A02160		Spring	Ships in 9 - 11 business days	$2.64
106	883831		O-Ring	In stock 10 available	$1.16
107	883832		Piston	Ships in 9 - 11 business days	$18.79
108	883833		O-Ring	In stock 5 available	$1.16
109	5140027-36		O-Ring	In stock 3 available	$1.64
110	883835		Gasket	In stock 5 available	$1.72
111	883836		Collar	Ships in 9 - 11 business days	$7.40
112	883837		O-Ring	In stock 11 available	$1.72
113	883838		O-Ring	In stock 5 available	$1.16
Fig #	Part #	Img	Part Name	Availability	Price
114	884007		Driver Unit w/o Ring Obsolete - Not Available	Discontinued	$0.00	N/A
115	883840		O-Ring	In stock 4 available	$1.72
117	883842		Bumper	Ships in 9 - 11 business days	$7.08
119	883881		Rolled Pin	Ships in 9 - 11 business days	$1.08
120	A08106		Driver Seal	Ships in 9 - 11 business days	$6.58
201	883844		Seal	In stock 5 available	$1.16
202	894694		Trigger Valve Head	Ships in 9 - 11 business days	$3.52
203	888890		Spring	Ships in 9 - 11 business days	$1.16
204	883847		Trigger Valve Stem	Ships in 9 - 11 business days	$9.48
205	883848		O-Ring	In stock 9 available	$1.16
206	883849		O-Ring	In stock 6 available	$1.16
207	883850		Trigger Valve Guide	Ships in 9 - 11 business days	$9.21
208	890725		Urethane Retainer	In stock 11 available	$1.80
208	883877		E-Ring	In stock 7 available	$1.16
209	883852		Safety Lever	Ships in 9 - 11 business days	$1.16
Fig #	Part #	Img	Part Name	Availability	Price
210	893933		Bottom Fire Trigger	Ships in 9 - 11 business days	$7.98
211	883851		Rolled Pin	Ships in 9 - 11 business days	$1.16
212	890724		Pin	In stock 9 available	$4.76
301	886557		Housing W/Soft Grip	Ships in 9 - 11 business days	$90.07
302	884529		O-Ring	In stock 5 available	$2.54
303	883858		End Cap	Ships in 9 - 11 business days	$8.47
304	883859		Male Quick Coupler	Ships in 9 - 11 business days	$8.39
403	883862		Plate	Ships in 9 - 11 business days	$7.54
405	883864		Bolt	Ships in 9 - 11 business days	$1.72
407	884009		Quik Release Latch As	Ships in 9 - 11 business days	$10.10
408	HR-55440		Clip Track	In stock 1 available	$72.37
409	884011		Stopper	Ships in 9 - 11 business days	$1.16
410	884012		Magazine	Ships in 9 - 11 business days	$29.47
411	884013		Stopper	Ships in 9 - 11 business days	$1.49
412	883867		Spring Washer	Ships in 9 - 11 business days	$1.16
Fig #	Part #	Img	Part Name	Availability	Price
413	884592		Bolt	Ships in 9 - 11 business days	$1.16
414	884016		Magazine Cover	Ships in 9 - 11 business days	$22.07
415	884017		Rear Plate	Ships in 9 - 11 business days	$8.01
417	883866		Bolt	Ships in 9 - 11 business days	$1.16
419	883904		Spring Obsolete - Not Available	Discontinued	$0.00	N/A
420	883878		Bolt	Ships in 9 - 11 business days	$1.16
421	884019		Plate	Ships in 9 - 11 business days	$5.68
422	884020		Bracket	Ships in 9 - 11 business days	$7.17
423	883898		Bolt	Ships in 9 - 11 business days	$1.72
425	883883		Safety Guide	Ships in 9 - 11 business days	$6.82
426	883884		Rolled Pin	In stock 6 available	$1.16
427	883885		Spring	Ships in 9 - 11 business days	$1.16
429	883908		Wear Plate	Ships in 9 - 11 business days	$1.72
430	883882		Lock Nut	Ships in 9 - 11 business days	$1.16
432	883906		Latch	Ships in 9 - 11 business days	$6.81
Fig #	Part #	Img	Part Name	Availability	Price
434	884443		Protective Cover	Ships in 9 - 11 business days	$1.49
435	884297		Hex Wrench (3mm)	Ships in 9 - 11 business days	$5.02
435	884298		Hex Wrench (4mm)	In stock 1 available	$5.02
800	884293		Air Tool Oil (18CC)	In stock 6 available	$2.81
856	893579		Safety Glasses	Ships in 9 - 11 business days	$9.12
861	886642		Carrying Case Obsolete - Not Available	Discontinued	$0.00	N/A
861	887712		Carrying Case Latch	In stock 25+ available	$1.16
1000	903757		Driver Maint Kit	In stock 1 available	$37.73
1001	903754		Overhaul Kit	Ships in 9 - 11 business days	$28.73

Nailer Parts

Discuss

Repair Videos

Articles

Popular Parts

Urethane Retainer $1.80	Protective Cover $1.49
Carrying Case Latch $1.16	O-Ring $1.16
Air Tool Oil (18CC) $2.81	E-Ring $1.16
Seal $3.93	O-Ring $1.16

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 BN125 Brad Nailer

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Question: Help With Trigger Assembly

Lellerman

I'm having problems with installing trigger assembly on Porter Cable BN125 brad nailer.

Reply: Help With Trigger Assembly

Tinkerdave

Hi Lellerman,
What problem are you having?.
Tinker

Question: Porter Cable BN125

sacs64

My brad nailer won't fire. I hear air escaping when I press the trigger and there is no resistance in the trigger pull.

Reply: Porter Cable BN125

WJA

Hello sacs64,

The problem may be with worn or torn o-rings in the trigger assembly. Part number 903754 will replace all the o-rings in that assembly plus other o-rings in the gun to get it tuned up and firing like new.

Hope this helps,
-WJA

Question: Porter Cable Bn125

My brad nailer does not retract each time I drive a nail. I have to push the piston up each time to drive another nail. Whats the problem?

Reply: Porter Cable Bn125

Daniel

Usually that's due to low air pressure. Increase your pressure a little but make sure you don't go over the recommended pressure- I rarely go over 110 psi for any of my nail guns. Your gun need air to retract as well as to drive.

Question: HOW TO FIX

Lloyd Allen

My brad nailer shoots one brad without jamming but it won't pickup the next brad. I can slide the driver up and it shoots one again. What is the problem?