Four Seasons 66983 A/C Refrigerant Suction Hose

BMW A/C Suction Hose Assembly

Four Seasons 66983 is an A/C refrigerant suction hose assembly built with aluminum and rubber construction for BMW HVAC service. It is specified for R134A and R1234YF refrigerant systems and includes the gasket or seal needed for the connection point.

Compatible With BMW 230i, 230i xDrive, 330i, 330i GT xDrive, 330i xDrive, 430i, 430i Gran Coupe, 430i xDrive, and 430i xDrive Gran Coupe applications that use a suction line or compressor-side hose assembly.

Key Features

• Four Seasons hose assembly, part number 66983
• Aluminum / rubber construction for HVAC refrigerant routing
• Works with R134A and R1234YF refrigerant systems
• Gasket or seal included
• No service port included
• No switch service port and no bracket
• Without muffler

Product Details

This Four Seasons hose assembly is engineered for the suction side of the air conditioning system, where refrigerant returns to the compressor. The aluminum and rubber design supports the routing and connection requirements found on BMW 2 Series, 3 Series, and 4 Series models listed below. Four Seasons backs this line with more than 50 years of mobile A/C experience and focuses on parts that are tested for dependable operation over time. This part cross-references Continental 66983 for the same application.

What It Helps Fix

• Refrigerant loss from a damaged suction hose or connection
• A/C performance issues caused by a leaking compressor-side line
• Cracked, hardened, or oil-soaked hose material
• Improper sealing at the hose connection point
• Noise or vibration concerns related to a worn hose assembly

Installation Notes

• Verify refrigerant type and hose routing before installation.
• Replace the seal or gasket at the connection point during service.
• Inspect mating fittings, compressor ports, and nearby lines for wear or contamination.
• Evacuate and recharge the system according to BMW A/C service procedures after installation.

Quality Assurance

Four Seasons engineers and tests its HVAC components for long-term, trouble-free operation. Part number 66983 is built as a direct-fit hose assembly for the listed BMW applications and is supported by the brand’s mobile A/C experience.