Degree Crank Pulley, Black Numbers, Standard Diameter

OVERVIEW

Precision is the hallmark of a high-performance air-cooled engine, and the EMPI Degree Crank Pulley is the definitive tool for the enthusiast who demands absolute accuracy. When you are building or tuning a Volkswagen engine, relying on the stock timing dimples is often insufficient for dialing in advanced ignition curves or checking valve timing. This standard diameter pulley features deep-etched, precision-machined markings from 0 to 360 degrees, finished with high-contrast black numbers that remain legible even in the tightest engine bays. Crafted from high-grade aluminum and polished to a mirror-like show quality finish, this pulley doesn''t just improve your tuning capabilities; it transforms the aesthetics of your engine, providing that classic performance look that Appletree Auto customers have trusted for decades.

Beyond its striking appearance, the engineering behind this 5-hole pattern pulley ensures a perfect balance between weight reduction and structural integrity. By maintaining the standard diameter, you ensure that your cooling fan speed remains at the factory-specified RPM, preventing the overheating issues often associated with smaller power pulleys on street-driven vehicles. Whether you are building a daily-driven Beetle, a weekend cruiser Karmann Ghia, or a rugged off-road Dune Buggy, this EMPI pulley provides the durability needed to withstand high-RPM operation while offering the precision required to squeeze every ounce of horsepower out of your flat-four power plant. It''s the perfect marriage of form and function for the serious VW builder.

FITMENT

This pulley is designed for Type 1, 2, and 3 air-cooled Volkswagen engines. It fits the following models equipped with 1200cc, 1300cc, 1500cc, and 1600cc based engines:

• Volkswagen Beetle: 1950 through 1979 (Sedan and Convertible)
• Volkswagen Karmann Ghia: 1956 through 1974
• Volkswagen Bus / Type 2: 1950 through 1971 (Up to 1600cc Dual Port)
• Volkswagen Type 3 (Squareback, Fastback, Notchback): 1962 through 1973
• Volkswagen Thing: 1973 through 1974
• Custom Applications: Dune Buggies, Sand Rails, Trikes, and Baja Bugs using VW Type 1 engine cases.

SPECS

• Material: High-Grade CNC Machined Billet Aluminum
• Finish: High-Polished Mirror Finish
• Diameter: Standard VW Diameter (Approximately 6.75 inches)
• Degree Markings: Full 360-Degree Scale
• Marking Color: High-Visibility Inset Black Numbers
• Design: Weight-Saving 5-Hole Pattern
• Weight: Approximately 1.2 lbs
• Manufacturer: EMPI
• Part Number: 00-9114-0
• Compatibility: Works with standard Woodruff keys and pulley bolts

PRO TIPS

1. Verify True Top Dead Center (TDC)

Never assume the 0-degree mark on a new pulley perfectly aligns with your engine''s actual Top Dead Center. Due to variations in crankshaft machining and case halves, you should always use a piston stop tool through the spark plug hole on cylinder number one to find the absolute highest point of travel. Once verified, you can mark the pulley or adjust your pointer. This ensures your timing is accurate to the degree, preventing pre-detonation and ensuring maximum power delivery across the entire RPM range.

2. Inspect the Crankshaft Keyway and Seal Surface

When installing your new aluminum pulley, take a moment to inspect the Woodruff key on the crankshaft for any burs or wear. A loose key can lead to the pulley wobbling, which will eventually wallow out the center of your expensive new aluminum part. Additionally, ensure the rear hub of the pulley (where it meets the case) is clean and smooth. Since this is a standard diameter pulley, it uses the standard oil return scroll. Ensure your crank seal is in good condition to prevent oil leaks from migrating onto your new polished finish.

3. Use a New Pulley Bolt and Proper Torque

Aluminum pulleys are softer than the steel crankshaft they mount to. We always recommend using a new, high-quality chrome or heavy-duty pulley bolt when installing this unit. Torque the bolt to the factory specification (typically 30-35 ft-lbs for most Type 1 engines). Over-tightening can stress the aluminum hub, while under-tightening can cause the pulley to shear the Woodruff key. A small drop of blue thread locker on the bolt threads can provide extra peace of mind for high-vibration off-road or performance applications.