Four Seasons 33170 A/C Accumulator

Four Seasons 33170 A/C Accumulator Overview

The Four Seasons 33170 A/C accumulator is a complete aluminum replacement unit for select GM van applications. It is built with a female O-ring inlet, male insert O-ring outlet, and a switch port for systems that use a pressure switch connection.

Compatible with 1980-1984 Chevrolet G10, Chevrolet G20, Chevrolet G30, GMC G1500, GMC G2500, and GMC G3500 HVAC systems, this Four Seasons accumulator is a direct-fit service part for restoring proper A/C operation.

Key Features

• Brand: Four Seasons Accumulator line
• Part number: 33170
• Complete unit aluminum construction
• Female O-ring inlet and male insert O-ring outlet
• Switch port included; no service port
• Meets or exceeds OEM requirements
• Compatible with 1980-1984 Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 applications

Product Details

The Four Seasons 33170 accumulator is part of the brand’s Accumulator line, built for A/C systems that require refrigerant storage and moisture separation on the low-pressure side. Its aluminum body measures 3.500 inches in diameter and 12.000 inches in length, with 3/4-inch inlet and outlet connections for the listed vehicle applications. The unit uses green O-rings at the inlet and outlet sealing points and includes a switch port for the system’s electrical connection. This part cross-references Gates 21253 for the same application.

Common A/C Issues This Part Addresses

• Low-side refrigerant storage problems in the air conditioning circuit
• Moisture buildup inside the A/C system
• Improper sealing at accumulator connection points
• Pressure switch port replacement needs
• Service replacement for aging Chevrolet and GMC van A/C components

Installation Notes and Tips

• Verify the inlet and outlet fitting style before installation.
• Confirm the vehicle uses a switch port and no service port configuration.
• Replace O-rings and evacuate the system before recharging.
• Check all A/C lines and related components for contamination or wear before final assembly.
• Use the listed fitment to confirm application on Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 models.

Quality Assurance

This Four Seasons accumulator meets or exceeds OEM requirements for the listed applications. It is engineered as a direct replacement for 1980-1984 Chevrolet and GMC van A/C systems, including Chevrolet G10, G20, G30 and GMC G1500, G2500, G3500 models.