Four Seasons 55716 A/C Refrigerant Suction Hose

Four Seasons 55716 A/C Suction Hose

The Four Seasons 55716 hose assembly is an OE replacement A/C refrigerant suction line for low-pressure HVAC service. Built with aluminum and rubber construction, it routes refrigerant between system components while maintaining a secure seal for R134-A applications.

Compatible with 2002-2006 Kia Optima applications, this suction hose assembly includes the service port and the required seals for a direct replacement on the low side of the air conditioning system. Four Seasons hose assemblies are built for vehicle-specific HVAC service, and the 55716 part number is used across multiple cross-reference listings for the same application.

Key Features

• Part number 55716 A/C refrigerant suction hose assembly
• Aluminum / rubber construction for HVAC routing and flexibility
• Low-pressure suction line for R134-A refrigerant systems
• Flange end and captive O-ring end for OE-style connection points
• Includes gasket or seal and fittings
• Service port included: 13 mm R134-A quick disconnect, low side
• OE replacement design for Kia Optima HVAC service

Detailed Description

Four Seasons 55716 is an A/C refrigerant suction hose assembly engineered as a direct OE replacement for the low-pressure side of the HVAC system. It uses aluminum and rubber construction to connect the suction line with the proper fitment and sealing surfaces required for R134-A refrigerant service. The hose assembly includes a flange end, captive O-ring end, P-nut fitting, and a low-side service port to match the original system layout on Kia Optima models.

This part cross-references UAC HA112008C for the same application. If you are replacing a leaking or damaged Kia Optima A/C suction hose, the Four Seasons 55716 provides the correct style of suction line for 2002-2006 Kia Optima vehicles.

What This Part Helps Fix

• Refrigerant loss from a cracked or leaking suction hose
• Low-side A/C pressure issues caused by damaged hose connections
• Improper sealing at the suction line flange or O-ring joints
• Service port wear or damage on the low-side HVAC line
• Loss of cooling performance from a compromised A/C refrigerant path

Installation Notes and Tips

Verify the vehicle’s original hose routing, end style, and service port configuration before installation. Replace worn seals and confirm the O-ring sealing surfaces are clean and undamaged before connecting the new suction hose. After installation, evacuate and recharge the system with the correct R134-A refrigerant specification and check for leaks at all connection points.

Fits 2002-2003 Kia Optima, N/A. Fits 2004-2006 Kia Optima, N/A.

Quality Assurance

Four Seasons 55716 is an OE replacement HVAC hose assembly built to match the original suction line application for Kia Optima models. The part number 55716 is also listed under common interchange references, supporting identification for the correct A/C refrigerant suction hose replacement.