Four Seasons 33219 A/C Accumulator

Four Seasons 33219 A/C Accumulator Overview

Four Seasons 33219 is a complete A/C accumulator for select GM trucks and SUVs from 1996-2000. It is built with an aluminum body, female O-ring inlet and outlet connections, and a switch port for systems that use a pressure switch connection at the accumulator.

Use this Four Seasons accumulator when servicing the air conditioning system on applications such as the Chevrolet Tahoe, GMC Yukon, and Chevrolet Silverado. The 33219 is an OE-style replacement that meets or exceeds OEM requirements and is built for direct-fit service on the listed vehicles.

Key Features

• Brand: Four Seasons Accumulator
• Part number: 33219
• Complete unit accumulator construction
• Aluminum body for HVAC service applications
• Female O-ring inlet and outlet fittings
• Switch port included; no service port
• Meets or exceeds OEM specifications
• Direct-fit replacement for select Chevrolet and GMC A/C systems

Product Details

The Four Seasons 33219 accumulator is used in the low-side portion of the air conditioning system to manage refrigerant flow and help protect the compressor from liquid refrigerant carryover. Its 3.500-inch body diameter and 8.000-inch body length support the factory-style layout used on many 1996-2000 Chevrolet and GMC trucks and SUVs. This part number 33219 also cross-references UAC RD1740C for the same application.

Compatible vehicle coverage includes Fits 1996-2000 Chevrolet Tahoe, N/A; Fits 1996-2000 GMC Yukon, N/A; Fits 1997-2000 Chevrolet Silverado, N/A; and Fits 1996-1999 Chevrolet C1500 Suburban, N/A. Additional coverage includes Chevrolet C/K series and GMC C/K series applications listed in the fitment data.

Common A/C Problems This Part Can Address

• Weak or inconsistent cabin cooling caused by a restricted or worn accumulator
• Moisture contamination in the A/C system after component replacement
• Compressor protection issues related to improper refrigerant separation
• Leaking O-ring connections at the accumulator inlet or outlet
• Fault codes or switch-related service concerns on systems using the accumulator switch port

Installation Notes and Tips

• Verify the inlet and outlet fitting sizes before installation: M27x2.000 thread size with female O-ring connections.
• Replace the specified green O-rings during service to help maintain a proper seal.
• Confirm whether the vehicle uses the accumulator switch port before ordering and installation.
• Evacuate and recharge the A/C system according to factory service procedures after replacement.
• Mounting hardware is not included.

Quality Assurance

Four Seasons 33219 is manufactured as an OE-style replacement that meets or exceeds OEM requirements. The aluminum construction and factory-style connection layout support reliable service on the listed Chevrolet and GMC applications, including Chevrolet Tahoe, GMC Yukon, and Chevrolet Silverado models.