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Oil Filter Adapter

Our JBROSG oil pump filter adapter installs on early and late generation Shovelhead as well as Evolution engines from 1985-1999 with an open or closed primary and on S&S oil pumps. Machined in Boise, Idaho from 6061 T6 Billet Aluminum. The adapter allows you to filter your oil directly out of the engine before returning to the oil tank.

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  • "💪🏻 Very smart system! Cool 💪🏻

    —Cyrcle Garage

  • " I've been running your filter adapter for the last 2 years with no issues!

    —Tod Howman

  • Top quality stuff! I've ran the JBROSG adapter on all of my bikes. Easy to install and I love the look!

    — Kenny Barrett

Vintage Harley Davidson motorcycle with a faded white tank, black engine, and thick tires, parked against a gray wall.
Close-up view of a shiny motorcycle engine and exhaust pipes with chrome finish and visible bolts and components.
Close-up view of a V-twin motorcycle engine with chrome and metallic parts, pipes, and surrounding mechanical components on a motorcycle frame.
Close-up of a chrome motorcycle engine with various components and gauges.
A black and chrome motorcycle with a black leather seat, parked on grass, with springs and chrome details.
Close-up of a motorcycle engine with metallic components and cooling fins.
A close-up view of a vintage motorcycle engine with visible parts like cylinders, cooling fins, and crankcase, mounted on a wooden base against a plain background.
Close-up of a black Harley-Davidson motorcycle with chrome parts, blue spark plug wires, and a yellow warning tag hanging from the engine, parked in a garage.
Close-up of a motorcycle engine showing metallic components and cooling fins.
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Installation Video

Here is a video guide to installing you JBROSG Oil Filter Adapter