{"product_id":"acdelco-heater-fitting-15-31770-silver-oem-style-hvac-connector-corrosion-resistant-durable-replacement","title":"ACDelco heater fitting 15-31770 — silver OEM-style HVAC connector, corrosion-resistant durable replacement","description":"\u003cp\u003e\u003cstrong\u003eACDelco Professional 15-31770 Heater Fitting is a silver aftermarket HVAC connector designed to replace worn or damaged heater system fittings with a precise, durable fit.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis ACDelco heater fitting is engineered as a professional-quality replacement for your vehicle’s HVAC heater lines. Built to meet OEM-style fit and performance expectations, it restores secure fluid connections and helps maintain proper heater core and heater hose operation. The single-piece silver fitting arrives ready to install and is intended for technicians and DIYers who need a dependable, purpose-made component for HVAC repairs.\u003c\/p\u003e\n\n\u003ch3\u003eWhat does this heater fitting replace and why choose it?\u003c\/h3\u003e\n\u003cp\u003eThe 15-31770 fitting replaces factory heater line connectors that have cracked, corroded, or failed. It’s manufactured as a premium aftermarket alternative that focuses on compatibility and long-term durability. Choosing this fitting avoids the unpredictability of generic parts by matching expected fit, form, and function.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for HVAC heater line connectors in compatible vehicle applications\u003c\/li\u003e\n  \u003cli\u003eConstructed to provide a secure, leak-resistant connection\u003c\/li\u003e\n  \u003cli\u003eProfessional-grade materials for corrosion and wear resistance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to install the ACDelco 15-31770 Heater Fitting?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward for someone experienced with heater hoses and HVAC components. The fitting is designed to align with standard attachment points and hose dimensions to minimize modification or additional parts. Basic hand tools and hose clamps are typically all that’s required.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFits standard heater hose sizes used in compatible vehicles\u003c\/li\u003e\n  \u003cli\u003eDesigned for fast swap-in replacement with minimal adjustments\u003c\/li\u003e\n  \u003cli\u003eWorks with standard clamps and mounting points for quick installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and quality standards does this part meet?\u003c\/h3\u003e\n\u003cp\u003eThis ACDelco Professional fitting is produced to meet aftermarket quality benchmarks that emphasize reliable performance. The silver finish and material choice resist corrosion and maintain connection integrity under typical under-hood conditions. It is manufactured with attention to dimensional accuracy so the part aligns predictably with OEM hose assemblies.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePremium materials for resistance to corrosion and thermal stress\u003c\/li\u003e\n  \u003cli\u003eManufactured to match expected OEM fit and functional tolerances\u003c\/li\u003e\n  \u003cli\u003eQuality control aimed at consistent, repeatable performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this fitting prevent leaks and restore HVAC heater function?\u003c\/h3\u003e\n\u003cp\u003eWhen installed correctly, the ACDelco 15-31770 fitting restores a secure pathway for heater coolant, reducing the risk of leaks associated with damaged or worn connectors. It’s part of a larger repair approach—paired with sound hoses and clamps, it contributes to reliable heater core circulation and heater operation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProvides a leak-resistant joint when used with proper clamps\u003c\/li\u003e\n  \u003cli\u003eHelps re-establish proper coolant flow to the heater core\u003c\/li\u003e\n  \u003cli\u003eBest used alongside inspected or replaced hoses and clamps\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Technicians and knowledgeable DIY mechanics who need a trustworthy replacement heater fitting for HVAC repairs will appreciate the ACDelco Professional 15-31770. It’s suited for garages, fleet maintenance, and home repairs where part quality, predictable fit, and durability matter. If your vehicle shows signs of heater line leaks or the original connector is damaged, this ACDelco fitting offers a direct, professional-grade solution to restore heater system connections without extensive modification.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the ACDelco 15-31770 a direct OEM replacement?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s a professional aftermarket replacement made to meet OEM-style fit and function for compatible vehicles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What tools do I need to install this heater fitting?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Basic hand tools and standard hose clamps are usually sufficient for installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"ACDelco","offers":[{"title":"Default Title","offer_id":55162300662103,"sku":"B00555FA7I","price":30.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/acdelco-heater-fitting-front-view.jpg?v=1790335895","url":"https:\/\/britishgarage.co.uk\/products\/acdelco-heater-fitting-15-31770-silver-oem-style-hvac-connector-corrosion-resistant-durable-replacement","provider":"British Garage","version":"1.0","type":"link"}