- This part is in stock in our warehouse and will ship out within 1 business day of the order being placed.
- New stock is on the way! On order parts usually ship within 7 business days.
- Item is not in stock and usually ships 10-15 business days from the time you place your order.
- This item is no longer being made by the manufacturer, and cannot be added to your shopping cart.
Product Description
?This is a manufacturer sourced replacement part. This seal is used on Porter Cable nailers/staplers. This seal plays an important role because it helps to provide and air tight seal for the piston. Over time it will shrink, become brittle and crack allowing for air leaks. Replacing it should resolve the issue. It is a good idea to check other seals and gaskets in a tool when replacing one seal. It is made out of rubber material and it is sold individually. Replacing this item you would need hex key/allen wrench.
Frequently Purchased Together
?Troubleshooting
- Porter Cable
- Nailer
Customer Part Reviews
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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.
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Blew o-ring (seal) in brad nailer and also broke housing cap air deflector
Gordon from BREAUX BRIDGE, Louisiana
2). Removed housing cap, saved spring & head valve seal (still in good condition) to go into new housing cap.
3). Cleaned broken o-ring parts from back of piston and within the nail gun housing.
4). Placed new o-ring on piston.
5). Inserted new seal, s ... Read more aved spring & head valve seal into new housing cap.
6). Attached new head gasket & housing cap to nail gun housing using hex screws.
7). Tightened screws, added a few drops of oil and test fired the mail gun.
Blowing air from top of gun...
Jon from Sun City, Arizona
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Screw drivers
- Parts Used:
- 891469, 5140027-36
Love e-replacement! Jon
Leaked air out exhaust
Brad from Chula Vista, , California
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 30 - 60 mins
- Tools:
- Screw drivers
Driver would not retract
James from Vermilion, Ohio
seal broke
LeRoy from oregon, Ohio
leaking air
Rafe from Lake Charles, Louisiana
Air leak
Michael from Mililani, Hawaii
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Parts Used:
- 891469
Remove the worn seal
Oiled the internal parts of the gun and cleaned through out
Installed the new seal
Replaced the top cap
driver would not return
Brett from Lake Alfred, Florida
- Difficulty Level:
- Easy
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Screw drivers
Quit firing
from Tulsa, Oklahoma
- Difficulty Level:
- Easy
- Total Repair Time:
- Less than 15 mins
- Parts Used:
- 891469, 5140027-36
Not firing
Richard from Metairie, Louisiana
- Difficulty Level:
- A Bit Difficult
- Total Repair Time:
- 15 - 30 mins
- Tools:
- Wrench set
- Parts Used:
- 891469
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Some of the parts we sell are eligible for mail-in rebates since we can recycle them. We will display any applicable rebates in your shopping cart. To redeem your rebate, contact Customer Service after you have received your part.