The piston/driver assembly fits between the cylinder sleeve and the o-ring. It is an authentic OEM sourced item which is specially produced for use with Bostitch nailers. This item is available as an individual replacement part. It may require a screwdriver during installation. This is made of metal and will need to be replaced if it breaks.
Troubleshooting
This part works with the following brands:
Bostitch
This part works with the following products:
Nailer
Part# 163921 replaces these:
163921, P163921,
Videos For installing this part.
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Model Cross Reference
This part works with the following models:
ERP Number: ERP18980069
Manufacturer Part Number: 163921
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.