Easy
15-30 minutes
This genuine manufacturer sourced replacement piston stop is specially produced for Porter Cable nailers. This part acts as a cushion when the driver retracts back into the cylinder after being fired. Because this part gets so much abuse, over time it will break apart. Please note, this plastic piston stop is sold individually.
To complete this repair you will need a hex key/allen wrench.
• Remove the end cap
• Remove the old stopper
• Secure the new stopper
• Reassemble and test the nailer
Piston Stop N80161
OEM part for: Bostitch, DeWALT
Part Number: N80161
$5.55
In Stock
Ships within 1 business day 
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Product Description ?
- Classification: Part
- Weight: 0.01 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This Piston Stop will fit the following 23 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Displaying 20 of 23 matching models.
23 total model matches. Try the above search to narrow your results.
This is the official OEM part for the following brands:
- Bostitch
- DeWALT
This item works with the following types of products:
- Nailer
Customer Part Reviews ?
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Right part and on time
Good parts breakdown and identification ordered and received on time
Guest -
August 16, 2021
Verified Purchase
part came as promised. was correct.
Needed parts for nail gun. perfect fit. gun is working fine once again.
Guest -
November 26, 2020
Verified Purchase
Stanley N80SB-1 Stick Nailer
Arrived quickly and in excellent shape. Took about 15 minutes to make the repair and get the gun working again.
On a related note, EReplacementParts is my go to source for fixing my 20 year old Ryobi weed wacker, 14 year old Honda mower and 10 year old Echo chain saw! Amazing they have this capability!
Tom -
November 4, 2020
Verified Purchase
Repair work
Fixing n80sb-1 nail gun. When you open a nail gun up for repair take the thing apart. I saw the first thing was the cylinder seal was shot and stopped bought a ring kit. Got it installed. Gun didn't work. Took it back apart. Piston stop came out in a hundred pieces. So had to order the piston stop separate. Good price and service. Gun up and running perfect wasted a week not checking everything.
Bill -
May 27, 2019
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.
Air comming out of the top
William - April 7, 2016
👍 5 of 5 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, None
Parts Used
Remove the top of the nail gun, and found that the piston stop was broken. I made sure that I was able to find all of the broken pieces and clean out the inside of the gun. I then replaced the broken piston stop and oiled the internal parts, then replaced the top cap of the nail gun. And now it works like it was new again.
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PISTON STOP FELL APART DUE TO AGE
John - November 20, 2015
👍 4 of 4 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Pliers, ALLEN WRENCH
Parts Used
VERY SIMPLE REPAIR. THE HARDEST PART WAS CLEANING ALL OF THE SMALL PIECES OF PLASTIC FROM THE OLD PISTON STOP.
REMOVED THE FOUR SCREWS HOLDING DOWN THE BACK COVER OF THE NAILER.
LIFTED OUT HEAD VALVE AND COMPRESSION SPRING TO ACCESS THE PISTON STOP.
REMOVED THE OLD PISTON STOP AND RING,BUMPER AND CLEANED COVER.
INSTALLED THE NEW RING,BUMPER, NEW PISTON STOP, OLD COMPRESSION SPRING AND HEAD VALVE.
ADDED A LITTLE OIL AND REATTACHED COVER.
REMOVED THE FOUR SCREWS HOLDING DOWN THE BACK COVER OF THE NAILER.
LIFTED OUT HEAD VALVE AND COMPRESSION SPRING TO ACCESS THE PISTON STOP.
REMOVED THE OLD PISTON STOP AND RING,BUMPER AND CLEANED COVER.
INSTALLED THE NEW RING,BUMPER, NEW PISTON STOP, OLD COMPRESSION SPRING AND HEAD VALVE.
ADDED A LITTLE OIL AND REATTACHED COVER.
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Air leak
Chris - December 4, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Allen wrench
Parts Used
Removed four screws holding the top cap on
Removed the old seal and the piston stop
Cleaned the interior of the nail gun
Installed and oil the new parts
Replaced the top cap
Removed the old seal and the piston stop
Cleaned the interior of the nail gun
Installed and oil the new parts
Replaced the top cap
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Leaking air
Larry - February 4, 2017
👍 2 of 2 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Power Drill
Removed the top cap of the nail gun.
Removed all of the worn and broken parts
Completely cleaned the internal parts and oiled them
Replace the top cap of the nail gun
Removed all of the worn and broken parts
Completely cleaned the internal parts and oiled them
Replace the top cap of the nail gun
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Deteriorating seals.
Mike - May 6, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen and o-ring pick tool
Parts Used
1. Removed the piston head.
2. Pulled the piston and the cylinder.
3. Removed all deteriorated o-rings and piton stops.
4. Installed all required o-rings and the piston stop.
5. Installed the new head gasket.
6. Replaced the piston head and torque screws to 15 in lbs.
7. Plugged air and it worked like new again.
2. Pulled the piston and the cylinder.
3. Removed all deteriorated o-rings and piton stops.
4. Installed all required o-rings and the piston stop.
5. Installed the new head gasket.
6. Replaced the piston head and torque screws to 15 in lbs.
7. Plugged air and it worked like new again.
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Leaking air.
FRANK - April 3, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Wrench Set, Allen wrenches
Rebuilt the nailer.
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Broken piston stop
Christopher - March 16, 2018
👍 1 of 1 people found this instruction helpful
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
Parts Used
Removed the top cap
Removed the broken piston stop and all the broken pieces
Installed the new stop
Installed the top cap
Removed the broken piston stop and all the broken pieces
Installed the new stop
Installed the top cap
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Driver not fully retracting
Daniel - November 13, 2020
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
, Allen wrench
Parts Used
Remove the top of the gun housing, remove the center plunger from the cap and replace broken part.
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Piston stop degraded after 22 years of use.
Tom - November 6, 2020
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, allen wrench
Parts Used
Removed the top of the nailer. The piston stop is located in the top cap. Replaced the piston top and screwed the top back on with an allen wrench. Used the EReplacement diagram on line for the correct order to replace the parts. The new piston stop looked slightly different from the original version but worked just fine after installation.
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air leak on top of nail gun
Dominic - July 26, 2020
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, allen wrench
Parts Used
replace piston stop and other broker parts
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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.
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.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
