Four Seasons 66754 A/C Refrigerant Discharge / Suction Hose Assembly

Reliable A/C Refrigerant Hose Assembly for Buick LaCrosse and Regal

The Four Seasons Hose Assembly part number 66754 is designed specifically for Buick LaCrosse and Regal models. This A/C refrigerant discharge and suction hose assembly ensures proper function of your vehicle's HVAC system by maintaining high and low pressure refrigerant flow with durable materials and included fittings.

• Constructed from aluminum and rubber for durability and flexibility
• Compatible with R134a refrigerant systems
• Includes necessary gaskets, seals, and O-rings for a secure fit
• Equipped with P-nut fittings on both discharge and suction ends
• Designed without a switch service port and bracket for direct replacement
• Features a muffler to reduce noise within the system
• OE replacement part ensuring proper fit and function

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing complete hose and pipe solutions for automotive HVAC systems. This product line includes assemblies engineered to meet original equipment specifications, offering reliable performance and ease of installation. The 66754 hose assembly is part of this line, delivering a precise fit for Buick LaCrosse and Regal vehicles while maintaining system integrity under both high and low pressure conditions.

Detailed Product Description

This A/C refrigerant discharge and suction hose assembly is constructed with a combination of aluminum and rubber materials, providing strength and flexibility necessary for the HVAC system's operation. It is designed to handle both high and low system pressures and is compatible with R134a refrigerant. The assembly includes all required fittings, gaskets, and slimline washer O-rings (part numbers 24402 and 24404) to ensure a leak-free connection. The discharge end features an 11.7 mm P-nut fitting, while the suction end has a 17.52 mm P-nut fitting, both designed for secure attachment to the manifold block. Additionally, the assembly includes a muffler to minimize operational noise and does not include a service port or switch, aligning with original equipment specifications.

Common Issues Addressed by This Hose Assembly

• Leaking refrigerant due to worn or damaged hoses
• HVAC system pressure loss affecting cooling performance
• Noise caused by vibration or loose fittings in the A/C lines
• Failure of original hoses leading to system inefficiency
• Replacement of corroded or cracked discharge and suction lines

Installation Notes and Tips

• Ensure system is fully depressurized before removal
• Verify compatibility with Buick LaCrosse and Regal models prior to installation
• Use included O-rings and gaskets to prevent leaks
• Check fittings for proper torque to avoid damage
• Inspect surrounding components for wear during installation

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66754 is an OE replacement part manufactured to meet strict quality standards. It includes all necessary seals and fittings to ensure a reliable, leak-free installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.