Round Oil Tank for Custom Use -Chrome plated w/ flat sides. -Center fill. -3.5 qt. -11 7/8" long, tank body measures 6 1/2" (outside diameter). -Made from 16 gauge steel, TIG welded. -Best used w/ our H80722 rubber mount -Use with Softail size battery and OE style rear tank mount. -Uses 1/8-27 NPT fittings for vent, return & feed lines, and 1/4-18 NPT fittings for oil drain. -Filler plug & custom front mount are included. -Fits OE Softail frames 1984/1999 when used with our # 420413 front mount, also fits Hardbody Fat-A-Tude, Chopper style & rigid frames.