Four Seasons 66900 A/C Refrigerant Suction Hose

Ram ProMaster A/C Suction Hose Assembly

Restore refrigerant flow on compatible Ram ProMaster vans with this Four Seasons A/C refrigerant suction hose assembly. Built with aluminum and rubber construction, it is made for compressor-end service on 2014-2021 Ram ProMaster 1500, 2500, and 3500 applications.

Four Seasons Hose Assembly 66900 is engineered and tested for dependable HVAC performance, using the refrigerant and sealing details needed for a proper repair on R134A and R1234YF systems.

Key Features

• Part number 66900 A/C refrigerant suction hose assembly
• Aluminum / rubber construction for HVAC routing and flexibility
• Designed for R134A and R1234YF refrigerant systems
• Gasket or seal included for the connection point
• No service port included and no switch service port
• No bracket and no muffler

Product Details

This Four Seasons hose assembly is a direct-fit HVAC replacement for the compressor-end suction line used on Ram ProMaster 1500, Ram ProMaster 2500, and Ram ProMaster 3500 models from 2014 through 2021. It is intended to replace a worn, leaking, or damaged A/C refrigerant suction hose while maintaining the correct hose routing and connection style for the vehicle platform. Four Seasons Hose Assembly 66900 is part of the brand’s long-running mobile A/C product line, focused on engineered replacement components for HVAC repair.

This part cross-references Global Parts Distributors LLC 4814169 for the same application.

What It Helps Fix

• A/C refrigerant loss from a cracked or leaking suction hose
• Poor compressor-side refrigerant transfer
• Damaged hose sections from age, vibration, or heat exposure
• HVAC performance issues caused by compromised hose sealing
• Service failures related to incorrect hose fitment on Ram ProMaster vans

Installation Notes and Tips

• Verify the vehicle uses the compressor-end hose assembly shown for your Ram ProMaster 1500, 2500, or 3500.
• Inspect mating surfaces and replace the included gasket or seal during installation.
• Recover refrigerant and evacuate the system before opening any A/C line.
• Confirm the system refrigerant type is R134A or R1234YF before service.
• Check hose routing and connection alignment before tightening fittings.

Quality Assurance

Four Seasons states that its HVAC products are engineered and tested for years of trouble-free operation, drawing on more than 50 years of mobile A/C experience. Part number 66900 is built to support reliable repair work on Ram ProMaster A/C systems.