These 5 gallon capacity Flatside Fat Bob style gas tank sets are available with screw-in style gas cap bungs. Fits FXST Softail standard models 1984 - 1999, and FXWG models 1985 - 1986. They will accept FL single speedo style or Low Rider style instruments and covers. They have a 13/16 inch external thread fuel valve connection. Unpainted. We recommend fuel tank liner and prep combo pack (part #K11292) to be used after pressure testing. Combo pack is in accessories section.