Cap to suit power steering reservoir/ tank on  all Holden Commodore/ Calais 6 cylinder models only (1984-1985).  In very good condition, genuine GMH part and in storage for many years. It is advisable to place teflon tape on threads of reservoir tank to ensure a secure fit, as is a common issue on these. Do NOT over tighten, very difficult to find these. Prompt dispatch, choose postage options to suit.