Four Seasons 158309 A/C Compressor

Reliable A/C Compressor for Cadillac STS

The Four Seasons New Compressor 158309 is designed specifically for Cadillac STS models, providing efficient and dependable air conditioning performance. Engineered to work with R134a refrigerant and compatible with Pag 46 oil, this A/C compressor ensures optimal cooling and system longevity.

Key Features of Four Seasons New Compressor 158309

• Compatible refrigerant type: R134a
• Includes oil filled with Pag 46 refrigerant oil
• 6-groove serpentine pulley for smooth belt operation
• Pin-type terminal for secure electrical connection
• Clutch included with a maximum diameter of 4.25 inches
• Coil voltage rated at 12 volts with 1 wire lead coil clock position
• Tangent mount type with a mounting distance of 24.638 mm
• Discharge and suction ports equipped with O-ring seals
• New Nippondenso 7sbu16c compressor type

About the Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to meet or exceed OEM specifications. This product line focuses on delivering reliable HVAC components that maintain factory performance standards. The New Compressor 158309 is part of this line, ensuring compatibility and durability for Cadillac STS vehicles requiring a Nippondenso style compressor.

Detailed Product Description

This Four Seasons A/C compressor (part number 158309) is engineered for Cadillac STS models and features a 6-groove serpentine pulley with a diameter of approximately 4.25 inches. The compressor is pre-filled with Pag 46 oil, compatible with R134a refrigerant systems, and includes both clutch and coil components for a complete replacement solution. The coil is coil-less type with a 12-volt rating and a single wire lead, simplifying electrical connections. The compressor uses O-ring sealed discharge and suction ports to prevent leaks and maintain system integrity. Its tangent mount design and precise mounting distance ensure proper fitment and alignment within the vehicle's HVAC system.

Common Issues Addressed by This A/C Compressor

• Loss of cooling due to compressor failure
• Clutch engagement problems affecting A/C operation
• Refrigerant leaks from worn or damaged compressor seals
• Noise or vibration caused by pulley or clutch wear
• Incompatibility with R134a refrigerant systems in Cadillac STS

Installation Notes and Tips

When installing the Four Seasons New Compressor 158309, ensure the use of the correct refrigerant oil type (Pag 46) and verify compatibility with R134a refrigerant. Note that mounting hardware is not included and may need to be sourced separately. The compressor may require the use of the original equipment manifold for proper installation. Check the clutch clearance and pulley alignment to avoid premature wear. Always replace O-rings with the provided green O-rings to maintain a proper seal.

Quality Assurance and Warranty

Four Seasons New Compressor 158309 is a brand-new component manufactured to meet OEM standards for Cadillac STS vehicles. The product includes factory-installed oil and clutch assembly to ensure reliable operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.