Four Seasons 66879 A/C Suction and Liquid Line Hose Assembly

Overview of Four Seasons Hose Assembly 66879

The Four Seasons Hose Assembly 66879 is designed for reliable HVAC performance in select Buick, Cadillac, and Chevrolet vehicles. This A/C suction and liquid line hose assembly is engineered to meet original equipment specifications, ensuring proper fit and function for models like the Buick LaCrosse, Chevrolet Malibu, and Cadillac XTS.

• Constructed from durable aluminum and rubber materials
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134-a refrigerant systems
• Includes slim line sealing washers and O-rings for leak prevention
• Features both high and low-pressure service ports (13mm/16mm)
• Comes with manifold and fittings included, without bracket or muffler
• Designed as an OE replacement part for direct fit

Four Seasons Hose Assembly Product Line Details

The Four Seasons Hose Assembly product line focuses on providing complete hose assemblies that integrate both suction and liquid lines with necessary fittings and sealing components. This line is tailored to deliver dependable HVAC hose solutions that maintain system integrity and performance. The 66879 part exemplifies this approach by including manifold and service ports while omitting unnecessary components like brackets or mufflers, streamlining installation and compatibility.

Technical Description and Features

This hose assembly combines aluminum and rubber materials to withstand the demands of high and low-pressure A/C systems using R134-a refrigerant. Both ends feature P-nut fittings, facilitating secure and leak-resistant connections. The assembly includes two sets of slim line sealing washers (part numbers 24401 and 24402) and four O-rings to ensure a tight seal. It supports service ports on both the high and low sides, sized at 13mm and 16mm respectively, allowing for efficient system servicing without a switch port. The inclusion of a manifold enhances system integration, while the absence of an orifice tube and muffler reflects its specific design for certain HVAC configurations.

Compatible Vehicles and Applications

• Buick LaCrosse HVAC system repairs and replacements
• Chevrolet Malibu air conditioning hose assembly needs
• Cadillac XTS A/C suction and liquid line maintenance
• Replacement for worn or leaking OEM hose assemblies in compatible models
• Addressing issues related to refrigerant leaks or pressure inconsistencies

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 66879, ensure all O-rings and sealing washers are properly seated to prevent leaks. The P-nut fittings require careful tightening to manufacturer torque specifications. Since the assembly includes service ports on both high and low sides, verify compatibility with your vehicle’s service equipment. This part is designed for direct OE replacement, so no modifications should be necessary for the Buick LaCrosse, Chevrolet Malibu, or Cadillac XTS models.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting or exceeding original equipment standards for durability and performance. The inclusion of all necessary fittings and seals supports a reliable installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.