830-3700 - when used with an FXE battery, will fit rigid and 1958–1964 swingarm frames, and will also clear 1979–up 4-speed transmissions. The tanks measure 5 5/8" tall x 8 5/8"deep x 12 1/4" wide, and the battery compartment is 7 1/2" wide x 5 1/8" deep
830-3701 - for 1965–1986 FL and FX 4-speed models, that provide easy access to the battery, and bolt to the stock mounts. Each tank includes a two-piece front bracket for easy installation, and measures 5 9/16" tall x 7 1/2"deep x 12" wide. The battery compartment is 7 3/8" wide x 4 1/8" deep
Both tanks require the purchase of drain plug 830-3702. Oil tanks come with filler plug and fittings as shown