{"product_id":"four-seasons-66321-a-c-refrigerant-suction-hose","title":"Four Seasons 66321 A\/C Refrigerant Suction Hose","description":"\u003ch2\u003eOverview of Four Seasons Hose Assembly 66321\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Hose Assembly 66321 is designed specifically for Mercedes-Benz GLK300 and GLK350 models. This A\/C refrigerant suction hose ensures reliable low-pressure refrigerant flow within your vehicle's HVAC system, maintaining optimal air conditioning performance.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eConstructed from durable aluminum and rubber materials\u003c\/li\u003e\n\u003cli\u003eEquipped with P-nut fittings on both ends for secure connections\u003c\/li\u003e\n\u003cli\u003eCompatible with R134a refrigerant systems\u003c\/li\u003e\n\u003cli\u003eIncludes green round O-rings and necessary gaskets for leak-free installation\u003c\/li\u003e\n\u003cli\u003eFeatures a service port sized at 13 mm on the low-pressure side\u003c\/li\u003e\n\u003cli\u003eOE replacement part ensuring proper fit and function\u003c\/li\u003e\n\u003cli\u003ePart number 66321 for precise identification\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFour Seasons Hose Assembly Product Line Details\u003c\/h2\u003e\u003cp\u003eThe Hose Assembly product line by Four Seasons focuses on delivering complete hose solutions for HVAC systems. These assemblies combine high-quality materials like aluminum and rubber with pre-installed fittings and seals to simplify installation and ensure system integrity. The 66321 suction hose assembly is part of this line, providing a direct OE replacement that meets the specifications required for Mercedes-Benz GLK300 and GLK350 air conditioning systems.\u003c\/p\u003e\u003ch2\u003eDetailed Product Description\u003c\/h2\u003e\u003cp\u003eThis A\/C refrigerant suction hose assembly is engineered to handle low-pressure refrigerant flow within the HVAC system. Both ends feature P-nut fittings, facilitating a secure and leak-resistant connection. The hose is compatible with R134a refrigerant, the standard for many modern vehicles including the Mercedes-Benz GLK series. Included with the hose are green round O-rings (part numbers 24635 and 24681) and gaskets, which help maintain a tight seal and prevent refrigerant leaks. The assembly also includes a service port on the low-pressure side, sized at 13 mm, allowing for convenient system servicing without the need for additional adapters.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReplacement of worn or damaged A\/C refrigerant suction hoses in Mercedes-Benz GLK300 and GLK350\u003c\/li\u003e\n\u003cli\u003eResolving refrigerant leaks caused by cracked or deteriorated hose materials\u003c\/li\u003e\n\u003cli\u003eRestoring proper low-pressure refrigerant flow for efficient air conditioning operation\u003c\/li\u003e\n\u003cli\u003eEliminating issues related to faulty or missing O-rings and seals\u003c\/li\u003e\n\u003cli\u003eFacilitating maintenance with an integrated service port for refrigerant charging and diagnostics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEnsure the vehicle is compatible: Mercedes-Benz GLK300 or GLK350 models\u003c\/li\u003e\n\u003cli\u003eVerify that the refrigerant type is R134a before installation\u003c\/li\u003e\n\u003cli\u003eInspect included O-rings and gaskets for damage prior to assembly\u003c\/li\u003e\n\u003cli\u003eUse proper torque specifications on P-nut fittings to avoid leaks\u003c\/li\u003e\n\u003cli\u003eCheck the service port for accessibility during installation to facilitate future maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eThe Four Seasons Hose Assembly 66321 is an OE replacement part designed to meet or exceed original equipment specifications. It includes all necessary fittings, seals, and gaskets to ensure a reliable and leak-free installation. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship, supporting long-term durability and performance.\u003c\/p\u003e","brand":"Four Seasons","offers":[{"title":"Default Title","offer_id":44604991439029,"sku":"BBRN-66321","price":59.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FS_66321_Fro.jpg?v=1775069578","url":"https:\/\/www.partcatalog.com\/products\/four-seasons-66321-a-c-refrigerant-suction-hose","provider":"PartCatalog","version":"1.0","type":"link"}