Four Seasons 33107 A/C Accumulator

Four Seasons 33107 A/C Accumulator

The Four Seasons 33107 A/C accumulator is a complete aluminum replacement for select GM full-size applications that use a service port and switch port. It is built to meet or exceed OEM requirements and is listed for 1985-1996 Cadillac Commercial Chassis, 1994-1996 Buick Roadmaster, 1994-1996 Cadillac Fleetwood, 1994-1996 Chevrolet Caprice, 1994-1996 Chevrolet Impala, and 1994 Chevrolet Commercial Chassis.

Key Features

• Four Seasons accumulator, part number 33107
• Complete unit construction in aluminum
• Female O-ring inlet and male insert O-ring outlet
• Service port and switch port included in the housing
• Meets or exceeds OEM specifications
• Body dimensions: 3.500 in. diameter and 8.000 in. length
• Inlet and outlet thread size: M27x2.000
• Compatible with Buick Roadmaster, Cadillac Fleetwood, and Chevrolet Caprice applications

Detailed Description

Four Seasons 33107 is an A/C accumulator for vehicles that use an accumulator-style HVAC layout in the refrigerant circuit. The aluminum body, OE-style port locations, and O-ring connections support a direct replacement approach for service work on Cadillac Commercial Chassis, Buick Roadmaster, Cadillac Fleetwood, Chevrolet Caprice, and Chevrolet Impala models. This part cross-references UAC RD1682C for the same application.

The Four Seasons accumulator line focuses on replacement components that match factory-style fitment and connection types. For this application, the 33107 uses a female O-ring inlet, male insert O-ring outlet, and integrated switch port, making it a practical choice when replacing a leaking or aging accumulator on GM rear-wheel-drive platforms.

Common Problems This Part Can Address

• Refrigerant loss from a cracked or corroded accumulator housing
• Moisture contamination in the A/C system after accumulator failure
• Improper A/C operation caused by worn inlet or outlet seals
• Service issues related to a damaged switch port or service port
• Restoration work on GM A/C systems that require the correct accumulator style

Installation Notes and Tips

Verify the inlet and outlet fitting style, thread size, and switch port configuration before installation. Replace the O-rings with the correct green O-rings specified for the connection points, and inspect the surrounding A/C components for contamination or wear before recharging the system. Confirm vehicle-specific fitment for 1985-1996 Cadillac Commercial Chassis, 1994-1996 Buick Roadmaster, 1994-1996 Cadillac Fleetwood, 1994-1996 Chevrolet Caprice, 1994-1996 Chevrolet Impala, and 1994 Chevrolet Commercial Chassis.

Quality Assurance

Four Seasons lists this accumulator as meeting or exceeding OEM specifications. The aluminum construction and OE-style connection layout support consistent replacement quality for service on the listed GM applications, including Buick Roadmaster, Cadillac Fleetwood, and Chevrolet Caprice models.