STORE STOCK #17. You are buying 1 NEW OLD STOCK gas cap P/n 3404661. This CHROME cap is the accessory locking gas cap for the following models; PLYMOUTH; Valiant; Duster; Duster 340; 1970 California with ECS; 1971; ALL. DODGE; Dart; Demon; Demon 340; Dart Swinger; Swinger 340; 1970; California with ECS; 1971; ALL. Cap is A-1 with GREAT chrome and comes with a set of keys. Buyer to pay within 3 days of sale by paypal and include 11.00 S&H in USA. I COMBINE SHIPPING ON MULTIPLE ITEMS!  If I can help you locate that one hard to find NOS Mopar part then please contact me. It could very well be in our 90,000 part inventory from 1940-80! Please check my Ebay store FOR MORE NOS MOPAR PARTS!