No matter the condition of your 1966 Eldorado, OPGI has the Interior Locks & Hardware products you need to boost performance and get you back on the road. We currently carry three Interior Locks & Hardware items to choose from for your 1966 Eldorado, and our Price Match Guaranteed prices range from as little as $12.99 up to $26.99. OPGI offers AC Delco plus one other trusted brands of Interior Locks & Hardware products for your 1966 Eldorado, to help you find quality parts you can rely on. With OPGI's 45-day return policy and thousands of customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Interior Locks & Hardware items in person.