Genuine OEM replacement part used on some Bostitch Nailers. This part is made out of Plastic and it is Sold Individually. This item helps to provide an Air Tight Seal for the Piston Driver. If this item is worn or damaged gun would leak air and not function as intended.
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★★★★★
★★★★★
Went right in and works so far.
Fits perfectly
Guest - September 10, 2019
Verified Purchase
★★★★★
★★★★★
Great Part
Quick shipping, exact part. Thank You!
Guest - October 21, 2019
Verified Purchase
★★★★★
★★★★★
Easy repair- perfect fit
Nail gun is back in use. Thanks
Guest - May 15, 2020
Verified Purchase
★★★★★
★★★★★
Returning customer.
I have purchased from ereplacement many times, both at home and for my place of employment. The parts diagrams make it very easy. I recommend them to whoever asks me for repair advice. Love them.
Guest - November 29, 2020
Verified Purchase
★★★★★
★★★★★
Up and running
The head valve,for the Bostitch coil siding nailer,worked perfectly. Cleaned out the debris from the old one that had dried out and blown, put it back together and worked perfectly again. Now if I could only find the head collar seal for my Porter cable coil 200 , I'd be happy. Thanks
Guest - July 15, 2021
Verified Purchase
★★★★★
★★★★★
Fast shipping the right product
Tried to get this part from a website named after a River, and they sent the wrong one, even though I gave them all the info. These guys sent the right part and in a faster time frAme. Will go here first from now on.
Guest - December 23, 2021
Verified Purchase
★★★★★
★★★★★
Easy and efficient
Had just what I needed with quick delivery.
Guest - December 27, 2021
Verified Purchase
★★★★★
★★★★★
Superfast Shipping!!!
Fit like a glove, gun is back in action!
Guest - January 6, 2022
Verified Purchase
★★★★★
★★★★★
Great Parts Availability, Great Delivery
Great place for parts, great parts availability, great parts delivery.
My Bostich Siding and fence nailer is back in business.
Guest - August 8, 2022
Verified Purchase
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I removed gun head and saw the problem. Removed piston with a 90 degree pic through center of piston. I then prepped new piston by installing new o-ring, piston spring, and lube. I then pressed piston assembly into gun head, installed gun head with four screws. Test fired worked perfect.
1. Removed the exhaust valve cover (four cap screws)
2. Removed damaged piston valve
3. Removed two o-rings and spring from damaged valve
4. Lubricated replacement part, spring and o-rings and inserted in piston body
5. Replaced exhaust cover and secured with the four cap screws
6. Pressured up coil nailer an
... Read mored fired off five nails.
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Plastic piston head was cracked. Air just blew by.
Remove the top cap of the piston head. Four allen head cap screws. Plastic piston head valve comes right out. I reused the two o-rings as they were fine. Just cleaned and lubed them. Reinstalled the new piston head in the same fashion as the old one came out. Re install the top aluminum cap with the four allen screws and tested.
I disassembled the Gun and found the problem pretty quickly. Ordered the parts I need for the repair. I reassembled it the same way I took it apart making sure every thing was in it right place. Tested the gun, it fired great, the way it always did. Make sure all the o-rings are seated properly and are well lubricated and torque the screw
... Read mores properly.
Remove the top of nailer. Replace the disintegrated head valve. Reassemble the nailer.
At the above is how it should have gone. However, in trying to discover the problem I completely disassembled the nailer. It was something like doing a hundred piece jigsaw puzzle to get it back together. Look when I finished the nailer works like
... Read more new. The exploded view of all the parts on the website we\'re most helpful in reassembling the unit
Removed 4 cap screws, popped off cap removed 2 orings and seal valve, put in new valve and orings greased the o rings re assembled cap Tool works great N66 coil nailer
REMOVE THE FOUR ALLEN BOLTS,REMOVE HEAD VALVE REVERSE FOR INSTALL
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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.
