V-Twin Mfg. 4-Piece Oil Line Set For Harley FL / EL Features: This is a replacement for 1936-64 Big Twin OHV models Available cadmium plated for restoration or chrome plated for a custom touch Supplied with nipple nuts already attached to fit wrap-around and stock oil pumps on Big Twin models Four piece oil line set includes the return filter to tank line, return pump to filter line, the vent line, and feed line for rigid frames with filters Order oil pump fittings separately Note: Must use oil line fitting 740-135 when installing on a 1940-1957 Rigid frame.