Gas Tank Parts Diagram for 1970-78 Datsun 240Z, 260Z and 280Z 1 – Gas Tank 2 – Gas Vapor Expansion Tank 3 – Hose – Vapor Tank to Gas Tank, rear short 4 – Hose – Vapor Tank to Gas Tank, rear long 5 – Hose – Filler Hose to Vapor Tank 6 – Hose – Vapor Tank to Fuel Pump, Front 7 – Hose – Vapor Tank to Gas Tank, Front 8 – Gas Tank Strap 9 – Gas Filler Hose 10 – Gas Tank Sending Unit 11 – Gas Tank Sending Unit O-Ring 12 – Gas Tank Lock Ring 13 – Gas Cap