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N12B Bumper Kit N12BumperKit -

Bostitch Bumper Kits

Product Details
Brand: Bostitch
Part Number: N12BumperKit

Obsolete, no replacement, none in stock


Includes exhaust valve (piston top) Bumper and driver (bottom) Bumper.

The bumper is what stops the piston once it has fired and traveled down to the bottom of the cylinder. It protects the piston/driver so that it does not contact the metal body of the nailer. Bumpers deteriorate over time, and if the wrong pneumatic lubricant is used. Be sure to keep the nailer clean and check the bumper to confirm it hasn’t chipped or broken apart, as it can damage other components.


This item fits the following models:

Pneumatic Roofing Nailer Parts - N12, N12B

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