BOSTITCH Assembly Piston/Driver: Mfr Part # 163921
The BOSTITCH Assembly Piston/Driver, Mfr Part # 163921, is a Piston/Driver Assembly air tool replacement part. It is identified by manufacturer part number 163921 and cross-references to model numbers 5KNH5 and F21PL2.
SKU 3G-OTH-167110
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Product Description
The BOSTITCH Assembly Piston/Driver, Mfr Part # 163921, is a Piston/Driver Assembly air tool replacement part. It is identified by manufacturer part number 163921 and cross-references to model numbers 5KNH5 and F21PL2.
Frequently Asked Questions
What is the BOSTITCH Assembly Piston/Driver 163921 used for?
The BOSTITCH Assembly Piston/Driver, part 163921, is a replacement component for pneumatic nailers and staplers. It drives the fastener into the workpiece. This part is commonly used in framing, finishing, and trim applications where reliable piston action is required for consistent tool performance.
What are the specifications of the BOSTITCH Piston/Driver Assembly 163921?
The BOSTITCH Piston/Driver Assembly has manufacturer part number 163921 and cross-references to model numbers 5KNH5 and F21PL2. It is a direct replacement for compatible BOSTITCH air tools. For exact fitment, verify your tool model against these references before ordering.
Where to buy BOSTITCH Piston/Driver Assembly 163921 worldwide?
3G Electric supplies the BOSTITCH Piston/Driver Assembly 163921 to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact our team for a quote and lead time. We source genuine replacement parts across 14 industrial departments.
How to install the BOSTITCH Piston/Driver Assembly 163921?
Installation requires disassembling the tool's cylinder and removing the old piston/driver. Ensure the new assembly is oriented correctly and lubricate seals per the tool manual. Torque fasteners to specification. Always depressurize the tool and disconnect air supply before servicing.
Used in
Common applications for BOSTITCHBOSTITCH Products
3G Electric supplies BOSTITCH air tool replacement parts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

