Spin-on oil filter elements are used on most models from 1980 to present. Genuine Zodiac oil filters are made with the finest filtering media and internal components available, provide excellent filtering efficiency and high levels of contaminant capacity for even the heaviest use. Available for most applications in 4 basic qualities, all manufactured after the highest quality standards and featuring a correctly calibrated pressure relief valve.

Classic stock replacement filters. Feature automotive quality 30 Micron filtration paper. Available in chrome or black.

Magnetic Double Action. These filters feature 30 Micron filtration paper, 30% more filtering surface, and a magnetic ring tower. The magnetic ring tower is an extra safety device that even holds steel particles of under 10 micron, Chrome plated.

TC Quality. Introduced in 1999 on the Twin Cam engine. These filters feature 10 Micron filtration paper and re-designed pressure relief valve, and Anti-Drain Back Valve. Available in chrome or black.

Magnetic Double Action TC Quality. For those "who do not want to take any chances". These filters feature 10 Micron filtration paper, and 30% more filtering surface, and a magnetic ring tower that even holds steel particles of under 10 micron, Chrome plated.

Dealer Note: Our most popular filters are now also available in attractively priced dealer 10-packs.

Oil filters The oil system of Harley-Davidson changed between the Evolution and Twin Cam models. On Evolution models the oil filter system is in the return section and uses a 30 micron filter. On Twin Cam models the oil filter system is on the pressure side and uses a 10 micron filter. Oil filters can not be changed over!