3.3 Gallon (12.5 liter). For pre-83 bajonet style gas caps (not included). The classic since decades; in a cool old school ribbed version. Takes a 3/8 NPT petcock; located on the right side. The rear section is equipped with 1/4" fuel outlets. Dimensions approx. 17" long x 11.5" wide; tunnel width 2". Note: It is advised to pressure test; seal and test fit all tanks before tanks are painted and installed. Some tanks are painted; but this coat is applied for rust prevention during storage only.