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BOSTITCHAir Tool Replacement Parts

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

Brand
BOSTITCH
Item
Assembly Piston/Driver: Mfr Part # 163921
Category
Air Tool Replacement Parts
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Technical Specifications

BOSTITCH
Manufacturer Part Number
163921
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BOSTITCH Products
3G Electric (S) Pte. Ltd. — Singapore

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 BOSTITCH
Construction framing — BOSTITCH pneumatic framing nailers (e.g., MCN250) for high-speed nailing of lumber and sheathing.
Woodworking assembly — BOSTITCH finish nailers for trim, molding, and cabinet installation requiring precise fastener placement.
Roofing applications — BOSTITCH coil roofing nailers for attaching shingles and underlayment on residential and commercial roofs.
Industrial packaging — BOSTITCH staplers for sealing corrugated boxes and crates in high-volume shipping environments.
Maintenance repair — BOSTITCH replacement parts (e.g., piston washers, o-ring kits) for servicing pneumatic tools in plant maintenance shops.
Compressor servicing — BOSTITCH air compressor heads (e.g., AB-7161400) for rebuilding or repairing stationary compressor units.

BOSTITCH 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.

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