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Brake Parts
Cooling Parts
Drivetrain & Transmission Parts
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Engines Parts
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Foot Controls & Pegs
Frame & Body
Fuel Parts
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Mounts & Hardware
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Twin Power™ Sportster Transmission Lube, 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 contains friction modifiers to reduce transmission drag and protect chains, sprockets and gears.
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).
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