Bikers Choice Chrome Round Petcock 3/8 Hose Barb for 1957-2006 Harley-Davidson
Replacing a stock or failed petcock immediately improves fuel delivery and adds a clean look to any carbureted build. The round body delivers a smooth, streamlined profile while still providing wrench access for installation, making it a practical fuel system upgrade for Harley choppers, bobbers, and stock carbureted builds.
Key Features
- High-flow design for improved fuel delivery compared to restrictive stock valves
- Round body profile for a smooth, streamlined appearance on custom builds
- Chrome-plated finish for corrosion resistance and a polished appearance
- Available in 22mm and 3/8″ NPT thread sizes covering 1957-2006 Harley-Davidson models
- Three outlet directions available: Left, Right, and Down
Technical Specifications
- Outlet Fitting: 3/8″ barbed (requires 3/8″ I.D. fuel line)
- Thread Options: 22mm nut-style female thread; 3/8″ NPT male thread
- Body Style: Round
- Finish: Chrome-plated
- Outlet Directions: Left, Right, Down
Fitment Notes
- 22mm thread version fits 1975-2006 carbureted Harley-Davidson Sportster and Big Twin
- 3/8″ NPT thread version fits 1957-1974 Sportsters and 1966-1974 Big Twins (Shovelhead and Panhead era)
- Requires 3/8″ inside diameter fuel line — confirm fuel line I.D. before ordering
- Outlet direction determines which side the barb points when installed — select based on your routing path
- Note: the 3/8″ NPT / Left and 3/8″ NPT / Down outlet positions are not currently available in this family








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