No matter the condition of your 1973 Series 70, OPGI has the Heaters products you need to boost performance and get you back on the road. We currently carry 26 Heaters items to choose from for your 1973 Series 70, and our Price Match Guaranteed prices range from as little as $21.99 up to $472.99. OPGI offers Maradyne plus two other trusted brands of Heaters products for your 1973 Series 70, to help you find quality parts you can rely on. With OPGI's 45-day return policy, 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 Heaters items in person.