Four Seasons 33140 A/C Accumulator

Four Seasons 33140 A/C Accumulator Overview

Four Seasons 33140 is a complete A/C accumulator for select Chevrolet, GMC, Oldsmobile, and Isuzu applications. It is built with an aluminum body, service port, and switch port to match the original system layout on vehicles such as the Chevrolet S10, GMC Sonoma, and Chevrolet Blazer.

As part of the Four Seasons Accumulator line, this unit is made for direct replacement service in R134a-equipped HVAC systems where the accumulator is used to manage refrigerant flow and protect the compressor.

Key Features

• Part number 33140 A/C accumulator for select GM and Isuzu vehicles
• Complete unit style with aluminum construction
• Female O-ring inlet and male insert O-ring outlet
• Service port and switch port included in the housing design
• Meets or exceeds OEM requirements
• Preconfigured with green O-rings for the specified connections
• Compatible with applications using M27x2.000 inlet and outlet thread sizes

Detailed Product Description

Four Seasons 33140 is an HVAC A/C accumulator designed for vehicles that use a receiver-drier style accumulator in the refrigerant circuit. The body measures 3.500 inches in diameter and 9.000 inches in length, with an aluminum housing that supports OE-style fitment and serviceability. This accumulator includes a service port and switch port, along with the specified inlet and outlet fitting styles for a direct replacement installation.

Compatible With 1995-2005 Chevrolet Blazer, 1995-2005 GMC Jimmy, 1994-2004 Chevrolet S10, 1994-2004 GMC Sonoma, 1996-2001 Oldsmobile Bravada, 1997-2000 Isuzu Hombre, and 1994 Chevrolet S10 Blazer, this Four Seasons 33140 accumulator is a practical replacement when servicing the A/C system on these platforms. This part cross-references Gates 21630 for the same application.

Common Problems This Part Can Address

• Leaking or damaged accumulator housing
• Restricted refrigerant flow at the accumulator assembly
• Failed service port or switch port connection points
• Worn O-ring sealing surfaces at the inlet or outlet
• A/C system service needs on R134a-equipped GM compact truck and SUV platforms

Installation Notes and Tips

Verify the inlet and outlet fitting types, thread sizes, and switch port configuration before installation. Replace the specified O-rings during service and confirm the system is evacuated and recharged according to the vehicle manufacturer procedure. Mounting hardware is not included, so reuse or source the required hardware separately if needed.

For fitment-specific service, confirm the vehicle year and model against the listed applications before ordering. Four Seasons 33140 is commonly selected for Chevrolet S10, GMC Sonoma, and related GM HVAC repairs where the accumulator assembly matches the original design.

Quality Assurance

Four Seasons lists this accumulator as meeting or exceeding OEM requirements. The Four Seasons Accumulator line is built for replacement service in automotive HVAC systems where OE-style dimensions, fittings, and port locations matter for proper installation and operation.