Genuine Bostitch replacement part, this item is sold individually. This seal is placed on the the cylinder of the tools shown below. Its purpose is to keep air from leaking from inside the tool. This part can become brittle and stretch. When this happens it is advise to obtain part number RBK8 Rebuild Kit. This kit will replace the o-rinds and gaskets to bring your tool back to excellent working condition.
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★★★★★
★★★★★
The perfect fit
Got it on time. Fits perfect and in 15 minutes I was nailing again
Guest - August 13, 2019
Verified Purchase
★★★★★
★★★★★
bigjon
part arrived on time and fit perfectly, could not ask for anything more
Guest - September 27, 2019
Verified Purchase
★★★★★
★★★★★
Quick and easy parts.
Your web site is very easy to use with detailed exploded views of the equipment you have parts for. It also helped with re-assembly of the nail gun I got the part for. The part arrived quickly and the ordering process on line was very easy. Other vendors could take a lesson from you.
Guest - October 7, 2019
Verified Purchase
★★★★★
★★★★★
Perfection
Fit like a glove perfect
Guest - November 9, 2019
Verified Purchase
★★★★★
★★★★★
Easy repair!
My framing nailer is over 20 years old and this part saved me over $200.00 to buy a new nailer.
Guest - February 8, 2020
Verified Purchase
★★★★★
★★★★★
the right part easy to install
my nail gun works once again thank you.
Guest - March 30, 2020
Verified Purchase
★★★★★
★★★★★
Nailer
Great replacement part, at a great price, arrived in under a week. It fit and worked perfectly.
Larry - December 16, 2020
Verified Purchase
★★★★★
★★★★★
No fuss repair
I purchased a seal for my pneumatic nailer and was perfect fit. Repair took about 10 minutes. Will order parts here again.
Guest - November 9, 2021
Verified Purchase
★★★★★
★★★★★
Very easy to install
Part was ship very quickly
Guest - March 23, 2023
Verified Purchase
★★★★★
★★★★★
Repair
It worked
Guest - June 7, 2023
Verified Purchase
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Questions & Answers
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Removed the 4 screws and removed the top of the nailer.. could see that the cylinder seal was broken. It was easily removed by hand and replaced.. put the top back on and the nailer worked like new again.. very simple repair and easy diagnosis of the problem.
1. Removed the 4 screws off of the head of nail gun.
2. Removed head.
3. Replaced seal at top of cylinder
4 Replaced head
5.Tighten 4 screws back down.
Followed the simple instructions included with the parts. The only hiccup was that one drawing on the trigger kit, sequential pointed to the wrong pin to remove the trigger, but that became obvious when I looked closely at the tool. The hint to use compressed air to expel the old trigger valve was valuable.
The diagram on the web site was very helpful in deciding which part I needed. I had ordered O rings also and replaced them while I had the gun in pieces. A youtube video was also helpful.
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 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 four allen head bolts gently separated head removed blown seal . Put thin coat of Vaseline on new seal , replaced seal . Replaced allen head bolts . Done
I had a o-ring seal kit on the shelf. I found the old seal stuck and gunked up. I had to use scotch-brite to clean that surface before installing the new o-rings
For some reason I did not have a piston stop and I don\'t know how this nailer ever worked without it? After cleaning everything up, lubricating and installing all the part
... Read mores, the nailer worked fine.
Thanks
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✖
Stock Status
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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