Heavy Duty Platinum Full Synthetic Sportster Transmission/Primary Oil. 74w140 1 Quart Bottle (946ml). Fits Sportster 1973-2021.

* 1 U.S. Quart / 946 ml.

*Harley® Sportster and Buell®. This fully formulated synthetic transmission lubricant is engineered to work in all applications where the same oil lubricates the clutch, primary, and transmission.

* Spectro STL is a high-performance lubricant that provides superior performance and delivers the highest levels of protection for the Sportster drivetrain.

* Proudly made in the USA, with an API GL-1 rating, STL exceeds all known OEM and Harley-Davidson® warranty requirements.