Bostitch Nailer Valves

This head valve body regulates airflow within pneumatic nailers, helping generate the pressure needed to drive fasteners effectively. Built from durable materials, it supports consistent tool performance. Replacing a worn or faulty valve can resolve issues such as air leaks, reduced driving power, or failure to fire, restoring reliable operation.

This is a genuine Bostitch replacement part that fits all BT brad nailers and all S32 staplers. If trigger leaks air or if tool misfires often, try replacing trigger valve. This kit contains one (1) each of: valve assembly (including both O-rings), lubricant, spring pin punch, and repair instructions. Please note that two (2) O-rings are included but can also be purchased separately as parts # 106...

The lower body head valve goes between the sleeve seal and the head valve spring. This item is available as an individual replacement part. It is made of plastic and is an original Bostitch part for nailers. It can wear out over time and will need to be replaced. A screwdriver may be needed during the installation of this part.

This genuine OEM trigger valve in your nailer or stapler works in conjunction with the head valve. When you press the trigger valve, it creates a pressure difference between the air reservoir and the cylinder and causes the head valve to open and release compressed air to drive the nail or staple into the material you are working on. It is commonly found in the handle or grip area of the tool. If ...

This item is an authentic Bostitch replacement part that has been sourced from the original manufacturer to be used with pneumatic nailers. The trigger valve works with the plunger to shift pressurized air above the piston to drive it downward and to allow pressure to move back below the piston to keep in the up position. This item is available as an individual replacement part.

Genuine Bostitch replacement parts kit. This Kit contains a new Trigger Valve with O-Rings, Push Pin & Lube. This kit is used in the models below to repair a worn Trigger Valve. A few symptoms of a worn trigger valve may be, a stuck trigger, gun not firing or an air leak.