This is a Genuine Manufacturer Sourced replacement part designed for Nailers/Staplers. This O-Ring provides an Air-Tight Seal for the Driver Unit. Over time this O-Ring will shrink, become brittle and crack allowing for air leaks. At that time it should be replaced. It is made out of Rubber and it is Sold Individually. Replacing this item you would need Hex Key/Allen Wrench and Pliers to replace this item.
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★★★★★
★★★★★
worked a expected
all the parts fit and my nail gun is working great
Guest - October 21, 2019
Verified Purchase
★★★★★
★★★★★
Easy Repair, now works great
Brought all the parts that were recommended put my brad nailer together and all worked great.
David - March 10, 2020
Verified Purchase
★★★★★
★★★★★
Bostich stapler parts
Everything was what I expected and fit as when installed. Thanks
Guest - April 6, 2020
Verified Purchase
★★★★★
★★★★★
Worked as promised
Arrived quickly
Guest - April 6, 2020
Verified Purchase
★★★★★
★★★★★
Exactly the part I needed
Easy to find part via search. Works great and didn't need to buy a new staple gun.
Guest - September 15, 2022
Verified Purchase
★★★★★
★★★★★
Bostitch staple gun
The parts arrived a day early. They fixed the problem and it works fine.
Guest - September 27, 2023
Verified Purchase
★★★★★
★★★★★
easy repair
everything as expected
Guest - December 28, 2019
Verified Purchase
★★★★★
★★★★★
Very pleased
Everything I received from you was perfect. It came quickly and was everything I needed. My bostitch is back up running smoothly. The only reason I did not give it 5 stars was
I thought the o-rings were a little pricey. I would definitely recommend you to anyone
Guest - April 6, 2020
Verified Purchase
★★★★★
★★★★★
Wrong parts received
The parts we were told to order for the staple gun were sent in a timely manor but we're the wrong parts and we had to pay shipping to get them here and then shipping to return the wrong parts . The staff that handled my return call was very nice about it and acted in a professional manner but I still think it was wrong when they are the ones who told us what we needed in the first place for us to have to pay to ship back the wrong parts that were sent in order to be credited back. It makes me not want to buy online irregardless of the convenience when it cost me money for the companies mistake.
Guest - October 31, 2019
Verified Purchase
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Disassemble the main cylinder and inspect for wear or broken parts. I found the o-ring groove on the head valve piston broken and very brittle. Original was made of a black material. The replacement is made of a white nylon looking material. Assembled all parts with new o-rings and lubrication. One of the easiest machines I\'ve ever
... Read moreworked on. It is now working like new and if it ever has a similar problem, I\'ll know where to go for parts. The original o-rings in mine didn\'t show any damage or much wear, but I felt it was better to replace them since the machine is several years old.
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Plunger (driver unit) was bent and stuck in the cylinder
Disassemble unit removing 4 top cap bolts and 3 small bolts holding the guide and trigger release. Remove cylinder , old driver unit and bumper. Insert new bumper, install o-ring slide driver through slot , insert cylinder over driver and seat with tab positioned in cylinder wall. Re mount external cap and nail guides. Hook air hose and t
... Read moreest. Works like a new nail gun.
1. Removed tops of Bostitch stapler and nailer.
2. Removed deteriorated valve parts
3. Removed driver covers and pulled out pistons.
4. Cleaned
5. Removed exhaust cover screw from inside of head and replaced exhaust covers.
6. Lubricated and installed new piston o-rings and head valves. Checked ereplacement
... Read morepages for diagram of proper orientation of washer and springs above head valves.
7. Reassembled
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.
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Mail-In Recycling Rebate
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.
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