Four Seasons 39277 A/C Expansion Valve

Four Seasons 39277 Expansion Valve Overview

Four Seasons 39277 is a block-type A/C expansion valve for R134A systems. It is built from aluminum and meets or exceeds OEM requirements for direct replacement service on select Chevrolet Astra and Suzuki Forenza applications.

Use this Four Seasons Expansion Valve line when you need precise refrigerant metering in an R134A HVAC system. The 39277 part number is a fitment-based replacement for 2004-2008 Chevrolet Astra and 2004-2008 Suzuki Forenza models.

Key Features

• Brand: Four Seasons Expansion Valve
• Part number: 39277
• Block-type A/C expansion valve for R134A refrigerant
• Aluminum construction and aluminum finish
• Meets or exceeds OEM specifications
• Style: w/o solenoid
• Mounting hole quantity: 2
• Insert O-ring liquid and suction connections
• Includes green O-ring service points referenced by the manufacturer data
• Super heat setting: -2.500
• Tonnage: 1.500

Detailed Description

The Four Seasons 39277 expansion valve regulates refrigerant flow into the evaporator to help maintain proper A/C system performance. Its block-type design, female insert O-ring fittings, and R134A-specific configuration make it a direct-service HVAC flow restrictor for the listed Chevrolet Astra and Suzuki Forenza fitments. The 39277 part number is also cross-referenced by UAC EX10177C for the same application.

Four Seasons Expansion Valve products are identified by application-specific fitment and OE-style dimensions, and this unit follows that approach with No. 10 suction inlet, No. 12 suction outlet, and No. 6 liquid inlet and outlet thread diameters. For 2004-2008 Chevrolet Astra and 2004-2008 Suzuki Forenza vehicles, this valve supports accurate refrigerant control in the factory-style A/C layout.

What This Part Helps Address

• Erratic cabin cooling caused by improper refrigerant metering
• Warm air from the vents when the evaporator is not receiving correct flow
• A/C performance loss related to a worn or restricted expansion valve
• System imbalance after HVAC service on R134A-equipped vehicles
• Fitment issues when replacing the original block-style expansion valve

Installation Notes and Tips

Verify the vehicle’s A/C system uses the same block-type layout, R134A refrigerant, and matching inlet and outlet connection sizes before installation. Inspect the mating surfaces and O-ring sealing areas carefully, and confirm the valve orientation matches the original part on the Chevrolet Astra or Suzuki Forenza application. Because this is a fitment-specific HVAC component, compare the original valve configuration to the part number 39277 before assembly.

Quality Assurance

This Four Seasons Expansion Valve is listed as meeting or exceeding OEM requirements. It is built as an OE-style replacement for the specified applications and is supported by the brand’s application-specific HVAC cataloging for the 39277 part number.