Four Seasons 33149 A/C Accumulator

Four Seasons 33149 A/C Accumulator

The Four Seasons Accumulator 33149 is a complete aluminum A/C accumulator built for HVAC systems that use a female O-ring inlet and male insert O-ring outlet. It meets or exceeds OEM requirements and includes a switch port for applications that call for a pressure switch connection.

Fits 1987-1990 Cadillac Allante, accumulator. This Four Seasons 33149 accumulator is a direct-fit option for Cadillac Allante A/C service where the original accumulator needs replacement.

Key Features

• Brand: Four Seasons Accumulator
• Part number: 33149
• Type: A/C accumulator, complete unit
• Material: aluminum construction
• Inlet fitting: female O-ring, 3/4 in. (19.050 mm)
• Outlet fitting: male insert O-ring, 3/4 in. (19.050 mm)
• Body diameter: 3.500 in. (88.900 mm)
• Body length: 9.000 in. (228.600 mm)
• Switch port included; no service port
• Meets or exceeds OEM specifications
• Green O-ring seals referenced for inlet and outlet connections

Product Details

Four Seasons 33149 is an A/C accumulator used in the refrigerant circuit to manage moisture and help maintain proper system operation. The aluminum body, OE-style fitting layout, and switch port make it a practical replacement for service work on 1987-1990 Cadillac Allante models. If you are replacing a leaking or restricted accumulator, this part number 33149 provides the correct connection style for the listed application.

This part cross-references UAC RD8816C for the same application.

Common Problems This Part Can Address

• Refrigerant leakage at the accumulator housing or fittings
• Damaged or worn O-ring sealing surfaces
• Moisture contamination in the A/C system
• Poor A/C performance caused by a restricted accumulator
• Failed accumulator switch-port connection on the original unit

Installation Notes

• Verify the inlet and outlet fitting style before installation.
• Replace O-rings and lubricate them with the correct refrigerant oil during assembly.
• Inspect the A/C system for contamination or debris before installing the new accumulator.
• Confirm switch-port requirements match the vehicle’s original configuration.
• Evacuate and recharge the system according to factory service procedures after installation.

Quality Assurance

Four Seasons 33149 is manufactured to meet or exceed OEM specifications for the listed Cadillac Allante applications. The Four Seasons Accumulator line is built for OE-style fitment and service replacement use.