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
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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
This item works with the following types of products:
- Nailer Parts
Customer Part Reviews ?
- 1
- 2
Questions & Answers ?
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Does this fit my product?Questions & Answers for Piston Bumper
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.
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
, Allen wrench
Parts Used
Nailer would not draw all the way back to allow another nail in the chamber
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Wrench Set, Nutdriver
Parts Used
The framing nailer stopped working
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench that came with kit
Thanks R.G.
Piston bumper disintegration
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
Pliers, Power Drill
Parts Used
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
Broken bumper
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Nutdriver
Parts Used
The piston bumper was smashed into a million pieces.
Tool Type
Nailer
Difficulty
Medium
Time
15-30 minutes
Tools Used
, Allen Wrench
Parts Used
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.
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Allen wrench included with the nailer
Parts Used
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.
Piston bumper deteriorated inside the gun
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
, Hex wrench
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!
Air leaking out of top
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen Wrench / Channel Lock Pliers
Parts Used
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
Piston Bumper was old and several pieces. Nailer 20 years old!!!!
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench set
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
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.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
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