S&S Cycle 31-4101A Oil Filter - Black

The S&S Cycle 31-4101A is a premium spin-on oil filter engineered for superior filtration and performance in Harley-Davidson Evolution, Sportster, and Buell motorcycles. This high-quality replacement filter features advanced filtration technology designed to protect your engine while maintaining optimal oil flow.

Key Features:

• Sturdy steel canister construction houses premium filtering media and internal components
• 30-micron filtration captures smaller particles than stock filters while maintaining low restriction to oil flow
• Direct bypass valve design routes bypass oil directly to the filter exit, minimizing contaminants in unfiltered bypass oil
• Compact diameter design makes removal and installation easier than stock filters
• Built-in anti-drain back valve prevents dry starts and engine wear
• Includes drain plug O-ring for complete oil change service
• Black powder-coated finish for corrosion resistance and sleek appearance
• Made in the USA

This filter cross-references to Harley-Davidson OEM part number 63805-80A, making it an excellent upgrade or direct replacement for your stock oil filter. The advanced filtration media provides superior engine protection without sacrificing oil pressure or flow characteristics.