Four Seasons 33139 A/C Accumulator

Four Seasons 33139 A/C Accumulator Overview

Four Seasons 33139 is a complete A/C accumulator for select Buick Riviera and Oldsmobile Aurora applications. Built as an aluminum OE-style replacement, it is specified with dual O-ring inlet and outlet connections, no service port, and no switch port for a direct-fit HVAC repair.

The Four Seasons Accumulator line focuses on replacement components that match factory-style HVAC layouts. This unit meets or exceeds OEM requirements and is built for vehicles that use a 5/8 inlet and outlet connection with M27x2.000 threads.

• Brand: Four Seasons
• Part number: 33139
• Type: A/C accumulator, complete unit
• Material: aluminum
• Inlet fitting: dual O-ring, male insert O-ring
• Outlet fitting: dual O-ring
• Switch service port: w/o service port
• Switch port: w/o switch port
• Meets or exceeds OEM specifications
• Mounting hardware not included

Fitment and Application Details

Compatible with 1995-1999 Buick Riviera and 1995-1999 Oldsmobile Aurora HVAC systems that use this accumulator configuration. Fits 1995-1999 Buick Riviera, N/A. Fits 1995-1999 Oldsmobile Aurora, N/A.

This part cross-references Monroe Shocks & Struts 172915 for the same application.

What This Part Helps Address

• Moisture buildup in the A/C system
• Refrigerant storage and flow control issues
• Compressor protection concerns caused by liquid refrigerant return
• Leaks at worn O-ring connections
• HVAC performance loss from a failing accumulator

Installation Notes

Verify inlet and outlet thread size, fitting style, and service-port configuration before installation. Replace sealing O-rings as needed, inspect the surrounding A/C lines for wear, and evacuate and recharge the system according to factory service procedures. Mounting hardware is not included.

Quality Assurance

Four Seasons 33139 is built as an OE-style replacement accumulator and is listed as meeting or exceeding OEM specifications for the stated applications.