Easy
15-30 minutes
Genuine Porter Cable replacement part, this item is sold individually.
The Piston Bumper is located Cylinder Cap of the nail guns listed below.
This part acts as a cushion when the piston/driver retracts back into the cylinder after being fired.
Piston Bumper 901901
OEM part for: Porter Cable
Part Number: 901901
$42.60
In Stock
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Product Description ?
- Classification: Part
- Weight: 0.03 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 6 machines
Porter Cable
FC350 Type 1 Clipped Head Framing Nailer View Diagrams & Manuals
FC350 Type 2 Clipped Head Framing Nailer View Diagrams & Manuals
FC350 Type 3 Clipped Head Framing Nailer View Diagrams & Manuals
FR350 Type 1 Round Head Framing Nailer View Diagrams & Manuals
FR350 Type 3 Round Head Framing Nailer View Diagrams & Manuals
FR350 Type 2 Round Head Framer View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Nailer Parts
Customer Part Reviews ?
Average Rating (out of 5):
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Easy Repair.
Working like new.
Guest -
June 29, 2023
Verified Purchase
Excellent fit!
“ Like a plug and play device on a computer “
Works and the air nailer is alive again.
Thanks
Guest -
February 16, 2022
Verified Purchase
Nail gun part
Found parts effortlessly. Received without issue. Part was easy to install with provided video links. Thanks.
Guest -
January 21, 2022
Verified Purchase
The right part for my Porter Cable nail gun.
This was the part I needed. It replaced the disintegrated part that I found inside.
Rod -
August 2, 2021
Verified Purchase
Perfect fit
Quick delivery. Package well with no damage. Gun works perfect.
MIKE -
July 19, 2021
Verified Purchase
Easy fix
Thanks for my part now my nail gun it’s back on business
Guest -
November 11, 2020
Verified Purchase
Easy repair
nailer works like new
Guest -
November 18, 2019
Verified Purchase
easy to order and find parts
Arrived quickly.
Guest -
September 25, 2019
Verified Purchase
Excellent transaction
Like usual, it was easy to find just what I need on your website, even if I don't know the exact name of the part. Shipping was fast and reasonably priced. Really happy that I could repair this expensive nail gun rather than have to replace it. Thanks!
Guest -
July 29, 2019
Verified Purchase
Nail gun
I received the right parts and my nail gun is working just like new
Guest -
June 22, 2019
Verified Purchase
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t days ago
Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Nailer would not feed. One shot, then nothing but the a mark from the end of the driver - no nail.
Chad - February 2, 2016
👍 30 of 30 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
, Allen wrench
Parts Used
I initially thought the problem was a damaged nail driver. Once I disassembled the top of the nailer I found the plastic piston bumper had disintegrated. Note: A properly functioning bumper and spring assembly dampens the recoil of the driver and keeps it high enough in the unit to be in position to strike the next nail. Without the bumper intact the driver snaps down below the nails and will not pick them up on the next trigger pull. Other than not picking up a nail, everything else appears to work properly. The youtube video produced by ereplacementparts (the one that addresses an overhaul) was all I needed to see how to fix it. I used the air compressor to blow out the 10,000 some odd pieces of piston bumper - it was all over the place. All of my o rings look intact, but it probably would have been worth the time to replace them. We'll see how that goes. I did lube them all with o ring silicone when I put it back together. Worked great on the test run.
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Nailer would not draw all the way back to allow another nail in the chamber
Travis - January 21, 2016
👍 13 of 13 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Wrench Set, Nutdriver
Parts Used
I removed the top cap of the nail gun and saw the broken pieces of the piston bumper. I removed all plastic debris from upper area. Then replaced piston bumper, worked like charm. all my seals, o-rings and gaskets were good as I had oiled religiously over the years. All good
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The framing nailer stopped working
Roger - November 22, 2015
👍 7 of 7 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench that came with kit
Had to disassemble and inspect. Found piston bumper had broken up and damaged the piston seals. Thoroughly cleaned all internal parts as per instructions and install new seals the come with the Overhaul Kit.. I had watched the video that was on your site and found Overhaul a breeze.
Thanks R.G.
Thanks R.G.
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Piston bumper disintegration
Keith - June 22, 2016
👍 4 of 4 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Pliers, Power Drill
Parts Used
1. Removed 4 Allen screws on head
2. Remove piston and collar
3. Use pliers to remove what was left of piston bumper
4. Use air and parts cleaner to remove all pieces of disintegrated piston bumper
5. Install in bumper
6. Apply lube to the o-rings
8. Install head torque bolts
2. Remove piston and collar
3. Use pliers to remove what was left of piston bumper
4. Use air and parts cleaner to remove all pieces of disintegrated piston bumper
5. Install in bumper
6. Apply lube to the o-rings
8. Install head torque bolts
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Broken bumper
reynaldo - May 20, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Nutdriver
Parts Used
Remove the screws from the top cap. Remove the broken bumper and all of the pieces of it in the gun. Replace the bumper and oil the interior of the gun. The screw the top cap back on.
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The piston bumper was smashed into a million pieces.
John - September 5, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
, Allen Wrench
Parts Used
Watched your U tube movie on how to repair. That showed me how to do the job. I have never had a nailer apart before. Took nailer apart. The nailer did not need the piston or nailing slide taken out as shown on the movie. It did need to be banged on a block of wood to remove parts in the top (as shown in movie). Removed top section from nailer. Removed all particles of busted bumper. Reassembled with new bumper, applied air pressure, tested on a 2x4 block of wood. It worked just fine.
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Nailer was slow to recover after power stroke. It drove the nail fine and then would leak air for a bit before it fully recovered.
Robert - July 8, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench included with the nailer
Parts Used
1. Removed the tool from the air supply.
2. Removed the four cap screws that hold on the top cover.
3. Removed the air chamber seal piston, spring, and washer from the top cover. Pay attention to the order of parts as you remove them.
4. Removed the shattered piston bumper.
5. Cleaned up the interior of the top cover and the seal piston.
6. Installed the new piston bumper. It just pushes into place.
7. Inserted the air chamber seal piston, spring, and washer back into the top cover.
8. Reattached the top cover and tightened the four cap screws that hold it in place.
2. Removed the four cap screws that hold on the top cover.
3. Removed the air chamber seal piston, spring, and washer from the top cover. Pay attention to the order of parts as you remove them.
4. Removed the shattered piston bumper.
5. Cleaned up the interior of the top cover and the seal piston.
6. Installed the new piston bumper. It just pushes into place.
7. Inserted the air chamber seal piston, spring, and washer back into the top cover.
8. Reattached the top cover and tightened the four cap screws that hold it in place.
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Piston bumper deteriorated inside the gun
Matt - May 26, 2017
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
, Hex wrench
Repair was easy and cost effective. All I did was watch the video first to see if I wanted to tackle the project. When it was over discovered there really isn't a lot of parts inside to keep me from trying it. So, I disassembled the nailer and found the source- broken piston bumper. I could see all kinds of plastic pieces scattered throughout the internal workings of the gun. After a good cleaning and a check of all the o-rings, the top portion of the nailer would have to be replaced. Next, I ordered the parts from the website which was simple and easy- in fact I also found a part to my Porter Cable sander as well. After a few short days the parts arrived and I put the gun back together, plugged it into the compressor and tried it out. "P-ka," the nailer was once again making that sweet sound that my wife can't stand.
Now if I had to buy the complete overhaul kit I'm not too sure I would have fixed the nailer. Reason being, the big box stores are always having a sale and a new one could be found for 30-50 dollars more with a one year warranty. Unless, I already had an abundance of nails that were specific to the old nailer then I would fix the old one.
Good Luck with your project and may the force be with you!
Now if I had to buy the complete overhaul kit I'm not too sure I would have fixed the nailer. Reason being, the big box stores are always having a sale and a new one could be found for 30-50 dollars more with a one year warranty. Unless, I already had an abundance of nails that were specific to the old nailer then I would fix the old one.
Good Luck with your project and may the force be with you!
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Air leaking out of top
robert - December 3, 2016
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen Wrench / Channel Lock Pliers
Parts Used
I used the allen wrench that came with the nailer to remove the cap.
I removed the broken piston bumper
I removed the valve seal
I cleaned the internal area of the gun completely & oiled it
I installed the new parts
I then screwed the cap back on
I removed the broken piston bumper
I removed the valve seal
I cleaned the internal area of the gun completely & oiled it
I installed the new parts
I then screwed the cap back on
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Piston Bumper was old and several pieces. Nailer 20 years old!!!!
Mark - July 21, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench set
Disassembled piston unit and installed new piston Bumper. Replaced trigger pin retainer and re-assembled unit back and installed nose cushion and unit is back in business. Thanks
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All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
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