Upgrade your VW's charging system with the EMPI Black Alternator / Generator Pulley Kit, the perfect finishing touch for any serious Type 1 air-cooled build. CNC-machined from a solid billet of aluminum and finished in a deep anodized black, this pulley spins straight and true—eliminating the wobble, runout, and belt-walk common with worn stock pulleys.

Whether you're freshening up a daily-driven Beetle, dialing in a high-RPM street build, or completing a show-quality engine bay, this pulley delivers the precision and aesthetic your killer engine deserves.

Why Choose the EMPI Billet Pulley?

• Precision Billet Construction: Machined from solid aluminum for a perfectly balanced spin—no more belt walk, no more vibration.

• Anodized Black Finish: A clean, satin black anodized coating that resists fading, scratching, and corrosion under engine bay heat.

• Complete Kit: Includes the pulley, a machined washer, and a Woodruff key—everything you need to drop it in.

• Universal Fitment: Works with both VW alternators and generators, making it the go-to upgrade across nearly any air-cooled charging setup.

• Stealth Show Look: Pairs perfectly with blacked-out tin, black alternator stands, and powder-coated fan shrouds for a sinister engine bay.

Technical Specifications

• Part Number: 16-9706-0

• Manufacturer: EMPI

• Material: Billet Aluminum

• Finish: Anodized Black

• Sold As: Complete Kit (Pulley + Washer + Woodruff Key)

• UPC: 707924354782

Vehicle Fitment

• Beetle (Type 1): Air-cooled alternator and generator applications

• Karmann Ghia: Air-cooled alternator and generator applications

• Bus (Type 2): Air-cooled alternator and generator applications

• Type 3: Air-cooled alternator and generator applications

• The Thing: Air-cooled alternator and generator applications

• Dune Buggy / Manx / Sandrail: All Type 1-based builds

Installation Tips

• Woodruff Key: Always seat the included Woodruff key fully into the shaft slot before sliding the pulley on—this is what transfers torque and prevents the pulley from spinning on the shaft.

• Torque the Nut: A loose pulley nut is the #1 cause of belt walk and pulley wobble. Tighten to spec and re-check after the first heat cycle.

• Belt Alignment: Verify the pulley is square to the crank pulley before final tightening to maximize belt life.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to www.P65Warnings.ca.gov. All parts legal for use on pre-pollution controlled vehicles only.

Explore Related Categories

Building out a complete charging or engine refresh? Browse the rest of our VW catalog: Ignition & Electrical for alternators, generators, and wiring, Engine Tin & Components for shrouds, fan housings, and seal trays, and The Washburn's Signature Series for our full line of original VW restoration solutions.