Four Seasons 66886 A/C Refrigerant Suction Hose

Overview of Four Seasons Hose Assembly 66886

The Four Seasons Hose Assembly 66886 is designed specifically for heavy-duty Chevrolet and GMC trucks, including the Sierra 2500 HD and Silverado 3500 HD models. This A/C refrigerant suction hose ensures reliable performance in your vehicle's HVAC system by maintaining proper refrigerant flow and pressure.

• Constructed from durable aluminum and rubber materials for long-lasting use
• Equipped with P-nut fittings on both ends for secure connections
• Compatible with R134a refrigerant type
• Includes necessary gaskets and fittings for installation
• Features a low side R134a quick disconnect service port (13 mm)
• OE replacement part designed to meet original equipment specifications

Detailed Product Features and Specifications

This Four Seasons Hose Assembly belongs to the Hose Assembly product line, which focuses on delivering reliable and precise HVAC hose and pipe solutions. The 66886 part is a suction line component made from a combination of aluminum and rubber, providing both flexibility and strength. It features P-nut fittings on both ends, ensuring a tight and leak-free connection to your vehicle's A/C system. The hose is designed for use with R134a refrigerant and includes all necessary fittings and gaskets, such as two slimline washer O-rings (part number 24404) and one green O-ring (part number 24650), to facilitate proper sealing and installation.

Compatible Vehicles and Applications

This A/C refrigerant suction hose is compatible with the following Chevrolet and GMC models:

• Chevrolet Sierra 2500 HD and Sierra 2500 HD Classic
• Chevrolet Sierra 3500 HD
• Chevrolet Silverado 2500 HD and Silverado 2500 HD Classic
• Chevrolet Silverado 3500 Classic and Silverado 3500 HD
• GMC Sierra 2500 HD and Sierra 3500 HD

Common Issues Addressed by This Hose Assembly

• Leaking refrigerant due to worn or damaged suction hoses
• Reduced A/C system efficiency from improper refrigerant flow
• Failure of original suction line components causing system pressure loss
• Corrosion or cracking in older aluminum/rubber hoses
• Difficulty maintaining proper refrigerant charge during servicing

Installation Notes and Tips

• Ensure the vehicle is compatible with R134a refrigerant before installation
• Use the included gaskets and O-rings to prevent leaks at connection points
• Verify that P-nut fittings are tightened to manufacturer torque specifications
• Check the service port for accessibility and proper sealing after installation
• Do not reuse old O-rings or gaskets to maintain system integrity

Quality Assurance and Warranty

The Four Seasons Hose Assembly 66886 is an OE replacement part, manufactured to meet or exceed original equipment standards for fit, form, and function. It is supplied with all necessary fittings and seals to ensure a proper installation. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty against defects in materials and workmanship when installed according to guidelines.