Transmission & Gear Oil

Twin Power Semi-Synthetic 85W140 provides smooth shifting. Our semi-synthetic base formula means ultra-high films strength and shear stability that resists viscosity breakdown and increases service life. It promotes smooth, quiet shifting, so you always...

Lube and protect your H-D Gearbox with Twin Power. Specially developed for Harley-Davidson custom models with separate primary and transmission cases, our transmission gear lube offers you superior protection for gears and bearings. It will give you...

Specially formulated for 71 and later XL models for smooth shifting and clutch action. This SAE 80W90 oil has been specially formulated for use in 1971 and later Harley-Davidson Sportster models with common primary and transmission chain cases. It...

Specially formulated for use in 1984 and later Harley-Davidson Big Twin models with "wet" diaphragm spring clutches. This is a high-quality, mineral-based lubricant with additives to reduce clutch drag and maximize the life of chains and sprockets on...