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Bumper, Head Valve 163820 $2.13

Bostitch Nailer Parts By Model Number

Product Details

Found under the following brands: Annovi Reverberi-AR, Westward, Bostitch, Black & Decker, Craftsman, Devilbiss Air Power, DeWalt, Emglo, Excell, Porter Cable, Speedaire
Part Number: 163820


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.

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This item fits the following models:

Pneumatic Framing Nailer Parts - F21PL
Pneumatic Framing Nailer Parts - F33PT
Pneumatic Framing Nailer Parts - F28WW
Pneumatic Coil Framing Nailer Parts - N89C-1
Pneumatic Framing Nailer Parts - F21PL2

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