Original dipstick or in Ford speak "Indicator - Oil Level" for C6 automatic transmissions. Application for 1967-69 Mercury Cougar 1966-69 Ford and Mustang with 390 engines and C6 automatic transmissions, code "U" on your door data plate. This dipstick is correct for lots of 1966-69 Ford and Mercury midsized cars with C6 transmissions coded "U". Stick length approximately 20 inches. No part number stamped on this version.
Technically incorrect for R and Q code 428CJ C6 transmissions.
Ford part # C6OP-7A020-B.