{"product_id":"heater-box-with-resistor-with-ac-1971-73-ford-mustang","title":"Heater Box with Resistor | With AC | 1971-73 Ford Mustang","description":"\u003cp\u003eRestore dependable cabin heat in your 1971-1973 Ford Mustang with this heater box with resistor designed for A\/C-equipped cars. Built to replace a broken, leaking, or missing heater box, it helps direct warm air through the vehicle for improved comfort while keeping your classic Mustang HVAC system clean, functional, and restoration-ready.\u003c\/p\u003e\n\u003chr\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesigned for A\/C Mustangs:\u003c\/strong\u003e Fits 1971-1973 Ford Mustang models equipped with air conditioning.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestores heating performance:\u003c\/strong\u003e Helps direct hot air into and throughout the cabin during cooler weather.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplaces worn heater boxes:\u003c\/strong\u003e A smart solution for broken, leaking, damaged, or missing original heater box assemblies.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes resistor:\u003c\/strong\u003e Built with the needed resistor for a more complete heater box replacement.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable lightweight construction:\u003c\/strong\u003e Made from sheet molding compound for strength without unnecessary weight.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComfort-focused upgrade:\u003c\/strong\u003e Helps ensure warm air is routed in the right direction for better drivability and cabin comfort.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestoration-ready fit:\u003c\/strong\u003e Ideal for refreshing your classic Mustang’s heating system during an HVAC or interior rebuild.\u003cbr\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cp\u003eThis heater box with resistor is a practical restoration upgrade for 1971-1973 Mustang owners with factory air conditioning. Original heater boxes can crack, leak, warp, or go missing over time, leaving the heating system weak or unable to send warm air where it belongs.\u003c\/p\u003e\n\u003cp\u003eConstructed from a lightweight yet durable sheet molding compound, this replacement heater box is built to support long-term function while keeping the installation clean and factory-inspired. It helps restore comfort, drivability, and confidence to your classic Mustang’s HVAC system.\u003c\/p\u003e\n\u003chr\u003e\n\u003cp\u003e\u003cstrong\u003eBring warm, reliable comfort back to your A\/C-equipped 1971-1973 Mustang with a durable heater box built for restoration confidence.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 20px; font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #e6e6e6;\"\u003e\n\u003cth style=\"border: 1px solid #cfcfcf; padding: 10px; text-align: left;\" colspan=\"2\"\u003eProduct Fitment\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eMake\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eFord\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eMustang\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eYear Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e1971-1973\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eA\/C Fitment\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eWith A\/C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eHeater box replacement or HVAC restoration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-family: Arial, sans-serif; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #e6e6e6;\"\u003e\n\u003cth style=\"border: 1px solid #cfcfcf; padding: 10px; text-align: left;\" colspan=\"2\"\u003eProduct Specs\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eHeater Box with Resistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eA\/C Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eWith A\/C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eIncluded Component\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eResistor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eSheet Molding Compound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eFunction\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003eDirects warm air into and throughout the vehicle cabin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e26 in. L x 16 in. W x 12 in. H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f7f7f7;\"\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e\u003cstrong\u003eApproximate Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cfcfcf; padding: 10px;\"\u003e12.5 lb.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"ACP","offers":[{"title":"Default Title","offer_id":52626356928801,"sku":"1139631081","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0983\/5105\/5137\/files\/1139631081-heater-box-with-resistor-with-ac-1971-73-ford-mustang-01.jpg?v=1777688698","url":"https:\/\/relicrides.com\/products\/heater-box-with-resistor-with-ac-1971-73-ford-mustang","provider":"Relic Rides","version":"1.0","type":"link"}