For use with Pre-1975 Harley FL, FX, XL models with 3/8" NPT Petcock Bungs. Replaces HD Part # 62125-55B Listing is for ONE RIGHT 90 HI-FLOW Petcock constructed of high grade FORGED BRASS. Petcocks are then Chrome Plated (Also available in Polished Brass.) Works with pre-1975 Harley Models FL, FX, XL with 3/8" NPT Petcock Bungs and most custom tanks with a 3/8" NPT Bung. Male 3/8" NPT thread. 3/8" barb accepts 3/8" ID hose (Some 5/16" ID Hose will work as well.) "R" (Reserve) "ON" and "OFF" just like OEM. The built-in filter allows for extra protection against debris entering your fuel system while still providing maximum flow Please make sure that you have at least 2-1/2" from the bottom of the petcock bung and the nearest obstruction in your tank (Baffles etc). We also offer these Petcocks in POLISHED BRASS as well as Female Internal 22mm thread for use with 1975 - 2006 models. Dimensions: Overall Length = 3-5/8" "Face" OD = 1-1/4" Thread = Internal Female 22MM The Length from the bottom of the threads to the top of the filter is 2-1/2" (Please check to make sure that this will fit in your tank.) Finish: Chrome Accommodates: Works with pre-1975 Harley FL, FX, XL Models with 3/8" NPT Petcock Bungs and most custom tanks with a 3/8" NPT Bung. Any tank with a 3/8" NPT bung and clearance for the filter inside the tank. A fuel hose with a 3/8" ID. FL 1965-1974 FX 1971-1974 XL 1955-1974. When referencing the Fuel Outlet Orientation: PLEASE READ If the Lever is in the "OFF" position and pointed at you, "ON" is to the left and "R" (Reserve) is to your right. "Left 90" means that the Fuel Outlet is facing the LEFT. "Right 90" means that the Fuel Outlet is facing the RIGHT. "Straight" or "Downward" means that the Fuel Outlet is facing DOWN towards the ground