{"product_id":"dorman-aluminum-a-c-line-block-off-for-3-8-line-corrosion-resistant-quick-install","title":"Dorman Aluminum A\/C Line Block-Off for 3\/8\" Line — Corrosion-Resistant, Quick-Install","description":"\u003cstrong\u003eDorman 800-993 is an aluminum block-off fitting designed to seal a 3\/8-inch automotive air-conditioning line quickly and resist corrosion.\u003c\/strong\u003e\n\n\u003cp\u003eIf a section of your vehicle's A\/C line is damaged or being replaced, the Dorman 800-993 provides a fast, cost-effective way to isolate and seal a 3\/8-inch line without replacing the entire assembly. Built from sturdy aluminum and engineered to resist rust, this block-off helps restore proper airflow and maintain system integrity while you complete repairs or perform temporary isolation during service.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this block-off save time and money during A\/C repairs?\u003c\/h3\u003e\n\u003cp\u003eRather than removing or replacing full line assemblies, the Dorman 800-993 lets you close off only the damaged portion. That reduces parts cost and labor hours, and limits the amount of refrigerant and oil that must be handled.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstalls quickly to isolate a damaged 3\/8\" line section\u003c\/li\u003e\n  \u003cli\u003eAvoids full-line replacement when only one segment is compromised\u003c\/li\u003e\n  \u003cli\u003eReduces time spent evacuating and recharging refrigerant\u003c\/li\u003e\n  \u003cli\u003eCompatible with common A\/C repair workflows and kits\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and construction features ensure long-term sealing?\u003c\/h3\u003e\n\u003cp\u003eManufactured from corrosion-resistant aluminum, the 800-993 resists rust and environmental wear that can compromise other fittings. Precision machining delivers a secure fit to minimize the risk of leaks under normal operating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSturdy aluminum body for rust resistance and durability\u003c\/li\u003e\n  \u003cli\u003eEngineered tolerances for a tight, leak-minimizing seal\u003c\/li\u003e\n  \u003cli\u003eDesigned for vehicle service environments and repeated handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the block-off easy to install for DIYers and technicians?\u003c\/h3\u003e\n\u003cp\u003eThe unit is designed for straightforward installation so both professional mechanics and capable DIYers can fit it without specialized factory tooling. Instructions and typical repair practices make it simple to integrate with common A\/C line repair kits.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple installation steps compatible with standard shop tools\u003c\/li\u003e\n  \u003cli\u003eSaves labor compared with routing and fitting full assemblies\u003c\/li\u003e\n  \u003cli\u003eWorks as a standalone part or as part of Dorman's A\/C Line Repair Kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this part fit my vehicle’s system and when should I use it?\u003c\/h3\u003e\n\u003cp\u003eThis block-off is intended specifically for 3\/8-inch A\/C line applications; verify line diameter and service requirements before installation. Use it to isolate damaged runs, create temporary seals during component swaps, or as part of a staged repair to limit replacement scope.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for 3\/8\" automotive A\/C lines—confirm size before purchasing\u003c\/li\u003e\n  \u003cli\u003eIdeal for emergency isolation, staged repairs, and targeted replacements\u003c\/li\u003e\n  \u003cli\u003eBacked by Dorman engineering and quality-control processes in the U.S.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Professional mechanics, independent shops, and experienced DIYers who want a durable, cost-effective solution to seal a damaged 3\/8-inch automotive A\/C line. If you need to limit repair scope, reduce labor and parts cost, or temporarily isolate a section during service, the Dorman 800-993 offers a practical, corrosion-resistant option supported by factory-level engineering and quality control.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eFeatures: Save time and money by repairing only the damaged section, easy to install, sturdy aluminum construction.\u003c\/li\u003e\n  \u003cli\u003eAvailability: Sold individually and also included in Dorman's A\/C Line Repair Kit options.\u003c\/li\u003e\n  \u003cli\u003eSupport: Backed by Dorman's team of engineers and quality control specialists in the United States.\u003c\/li\u003e\n\u003c\/ul\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: What line size does the Dorman 800-993 fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It is designed specifically for 3\/8-inch automotive air-conditioning lines; verify your line diameter before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use this as a permanent repair?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s intended for sealing and repair applications; consult vehicle recommendations to determine if a permanent replacement is required.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Dorman","offers":[{"title":"Default Title","offer_id":48086126592158,"sku":"B0083H5J8U","price":42.3,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/dorman-block-off-front-view.jpg?v=1785885712","url":"https:\/\/northtrailauto.ca\/products\/dorman-aluminum-a-c-line-block-off-for-3-8-line-corrosion-resistant-quick-install","provider":"North Trail Auto","version":"1.0","type":"link"}