Easy
15-30 minutes
This is an authentic manufacturer sourced replacement part that is specially produced for Porter Cable nailers and staplers. It helps to provide an air tight seal between the piston and the cylinder walls. This o-ring is made from durable rubber material and it is sold individually. To complete this repair you will need a hex key also known as an allen wrench.
O-ring 884585
OEM part for: Porter Cable
Part Number: 884585
$5.48
In Stock
Ships within 1 business day 
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Compatibility
This O-ring will fit the following 7 machines. Confirm this part works with your model, and view the detailed model diagrams and repair help we have to offer.
Porter Cable
Show More Compatible ModelsThis item works with the following types of products:
- Nailer Parts
- Stapler Parts
Customer Part Reviews ?
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o- ring
part was just as ordered and fit perfectly.
Guest -
October 30, 2021
Verified Purchase
nail gun repair
worked as expected
Guest -
May 12, 2020
Verified Purchase
Accurate part replacement
The replacement parts arrived in a reasonable time and fit into my nail gun as expected. My nail gun is now working like it did when it was new. This was a significant savings over buying a new nail gun.
Guest -
November 26, 2019
Verified Purchase
ordered many parts
arrived as described, however, I still can't get my nail gun to fire right after replacing almost all o rings. bought another and will take this one to the auction
Guest -
February 24, 2020
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.
Leaking air, would not shoot
Tony - June 16, 2021
Tool Type
Nailer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Wrench Set, Mallot
Parts Used
Replaced the "O" ring. Put it back together, tested it and it worked as if new.
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Nailer won't fire, only leaked air while the trigger was depressed in the trigger area
Michael - February 16, 2019
Tool Type
Nailer
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Wrench Set, Dental Pick
Disassembled the trigger and then removed the trigger valve from the body of the gun using a socket. I replaced all of the O-rings in the trigger area and lubricated them with the oil that comes with the gun. I then reassembled the valve and screwed it back into the gun body. I reassembled the trigger making sure that the safety worked as it is designed to. The gun worked properly after the repair and continues to at this point. I am satisfied that the O-rings were the cause of the problem.
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Leaking air at the top of the nailer.
Frederick - April 24, 2018
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, Allen wrench
1. Removed the top of the nailer.
2. Removed the broken piston stop.
3. Put in all new o-rings.
4. Reassembled the nailer.
2. Removed the broken piston stop.
3. Put in all new o-rings.
4. Reassembled the nailer.
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O-rings were bad
AMBROSE - August 7, 2017
Tool Type
Nailer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Allen wrench
Parts Used
Removed the four screws from the cylinder head and removed it
Removed and replaced the worn o-rings
Cleaned and oiled the inside of the gun
Installed the cylinder head
Removed and replaced the worn o-rings
Cleaned and oiled the inside of the gun
Installed the cylinder head
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Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
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.
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.
