Four Seasons 55819 A/C Refrigerant Suction Hose

Four Seasons 55819 A/C Suction Hose

The Four Seasons 55819 hose assembly is an OE replacement A/C refrigerant suction hose for low-pressure HVAC service. Built with aluminum and rubber construction, it routes refrigerant through the suction line with the correct P-nut fitting and capture O-ring connection points.

Compatible with 2009 Dodge Ram 1500, 2010 Dodge Ram 1500, 2011 Ram 1500, and 2011 Ram 2500, this hose assembly is specified for R134-A systems and includes the service port and seals needed for the application.

Key Features

• Part number 55819 from Four Seasons Hose Assembly line
• A/C refrigerant suction hose for low-pressure side service
• Aluminum / rubber construction for HVAC routing
• P-nut fitting on the suction end with capture O-ring connection
• R134-A refrigerant type
• OE replacement design for direct-fit service
• Includes gasket or seal and fittings
• Service port included, 13 mm QDC, low-side configuration

Product Details

Four Seasons 55819 is a suction line hose assembly used in the air conditioning system to carry refrigerant on the low-pressure side. The assembly uses aluminum and rubber materials for the hose path, with a P-nut fitting at the suction end and a capture O-ring at the other connection point. It is built for R134-A refrigerant systems and includes the low-side service port specified for this application. If you are replacing a worn or leaking A/C refrigerant suction hose on a 2009 Dodge Ram 1500, 2010 Dodge Ram 1500, 2011 Ram 1500, or 2011 Ram 2500, part number 55819 provides the correct OE-style configuration.

This part cross-references UAC HA111659C for the same application.

Common Problems This Part Can Address

• Refrigerant loss from a cracked or deteriorated suction hose
• Low-side A/C pressure issues caused by a leaking hose assembly
• Damaged or worn hose fittings at the suction connection
• Service port leakage on the low-side HVAC line
• Loss of cooling performance from an aging A/C refrigerant suction hose

Installation Notes and Tips

Verify the vehicle’s refrigerant system uses R134-A before installation. Match the suction end, capture O-ring connection, and low-side service port style to the original hose assembly on the vehicle. Replace sealing surfaces as needed and inspect adjacent A/C components for wear, contamination, or damage before recharging the system.

Quality Assurance

Four Seasons supplies OE replacement HVAC components, and this hose assembly is built to match the specified application for proper fit and serviceability.