Description
Your Big Twin’s primary drive demands an oil formulated specifically for the unique pressures and temperatures of wet-clutch systems. DRAG Oil Primary Drive Oil delivers the film strength and thermal stability needed to protect your clutch, transmission, and primary gears under sustained high-performance riding. Whether you’re running stock or modified internals, this mineral-based formula keeps your primary running clean and reliable.
- Formulated for 1984+ Big Twin Harley-Davidson motorcycles
- Designed for wet-type diaphragm spring clutches
- High film strength for wear protection
- Engineered for high-temperature performance
- 1 U.S. quart container size
- Part Number: 36030072









