This is a genuine item that is supplied by the original equipment manufacturer for Senco nailers. It is an identical replacement for a missing or damaged valve that was installed in a new unit, please make sure to refer to the appropriate diagrams of your model for the correct location and installation of this component. This high-quality part is made of durable plastic and is sold individually, keep in mind the other components are all sold separately.
Using a 5mm hex wrench, remove the four screws from top of the nail gun. Be a little careful, as there is a spring in the assembly that will push the top of the gun off. I used a schematic I printed from the Senco website to identify the broken parts and determine the correct reassembly order. Otherwise, just remove one o-ring or seal at
... Read morea time and replace with the one from the kit. It seems that this kit is designed for multiple tool models so you will have a few parts left over. The challenge in the reassembly was figuring out that large outer seal on the aluminum chamber had to be installed in the gun body and the tube the installed.
Removed top and bottom caps pulled gun completely down
Ordered gasket set.
Replaced gaskets and reassbled
Still not striking air leak at top. Clynder not returning.
Ordered and replaced midseal and bump stop
Still leaking at top.
Order top seal and trigger cage and replaced.
Works like new.
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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.