No matter the condition of your 1963 Catalina, OPGI has the Fittings products you need to boost performance and get you back on the road. We currently carry 179 Fittings items to choose from for your 1963 Catalina, and our Price Match Guaranteed prices range from as little as $2.99 up to $161.99. OPGI offers Aeromotive plus seven other trusted brands of Fittings products for your 1963 Catalina, to help you find quality parts you can rely on. With OPGI's 45-day return policy and one 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 Fittings items in person.