Four Seasons 157309 A/C Compressor

Overview of Four Seasons Reman Compressor 157309

The Four Seasons Reman Compressor 157309 is designed specifically for Cadillac STS models requiring a reliable HVAC component. This remanufactured A/C compressor supports R134a refrigerant and comes oil filled with compatible Pag 46 refrigerant oil, ensuring proper lubrication and performance.

• Compatible Refrigerant Type: R134a
• Oil Type: Pag 46 (included)
• Compressor Type: 7sbu16c
• Coil Voltage: 12V with 1 wire lead coil clock position
• Pulley Groove Quantity: 6 grooves for serpentine belt
• Mounting Type: Tangent mount with 0.953 inch distance from clutch to mounting flange
• Clutch Included with maximum diameter of 4.25 inches
• Discharge and Suction Ports: O-ring sealed
• Terminal Type: Pin
• O-Rings Included: Green o-rings [24681] and [24661]

About the Four Seasons Reman Compressor Line

The Reman Compressor line by Four Seasons offers remanufactured A/C compressors that meet strict quality standards. These compressors are rebuilt to original equipment specifications, providing a cost-effective alternative to new units without compromising reliability. The 157309 model maintains essential features such as oil filling and clutch inclusion, making it a practical replacement for Cadillac STS vehicles.

Detailed Product Description

This Four Seasons Reman Compressor 157309 is engineered for the Cadillac STS, featuring a 7sbu16c compressor type compatible with R134a refrigerant systems. It includes a 12-volt coil with a single wire lead, designed for efficient electromagnetic clutch engagement. The pulley system has six grooves to accommodate serpentine belts, with a pulley diameter of approximately 108 mm (4.25 inches). The clutch assembly is included and matches the original equipment dimensions, ensuring proper fit and function. Both suction and discharge ports use O-ring seals to prevent refrigerant leaks, and the unit comes pre-filled with Pag 46 oil to maintain lubrication and system longevity.

Common Applications and Issues Addressed

• Replacement for failing or noisy A/C compressors in Cadillac STS
• Restores proper refrigerant compression and circulation
• Solves clutch engagement problems due to worn or damaged clutches
• Addresses refrigerant leaks from worn seals or ports
• Improves overall HVAC system cooling performance

Installation Notes and Tips

Installation requires tangent mount compatibility and may necessitate the use of original equipment (OE) manifold tools. Mounting hardware is not included, so ensure existing bolts and brackets are in good condition or replaced as needed. Verify the clutch alignment and pulley groove count to match the serpentine belt system on the Cadillac STS. Proper evacuation and recharge of the A/C system with R134a refrigerant and Pag 46 oil are essential for optimal operation.

Quality Assurance and Warranty

The Four Seasons Reman Compressor 157309 undergoes rigorous remanufacturing processes to meet OEM standards. It includes essential components such as the clutch and oil, ensuring a ready-to-install unit. While mounting hardware is not included, the compressor is tested for performance and leak integrity. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.