Denso 471-9144 A/C Compressor

Overview of the Denso 471-9144 A/C Compressor

The Denso 471-9144 A/C compressor is designed for reliable air conditioning performance in select Buick, Oldsmobile, and Pontiac vehicles. Engineered to work with R134a refrigerant, this compressor supports efficient cooling and system durability.

• Compatible with Buick 88, 98, LeSabre, Park Avenue, and Riviera models
• Fits Oldsmobile 88, 98, and LSS models
• Designed for Pontiac Bonneville, Grand Prix, and Grand Am
• Uses R134a refrigerant type for modern A/C systems
• Clutch maximum diameter of 130.0 mm for precise engagement
• Serpentine pulley belt type for smooth operation
• Three ear mount for secure and stable installation

Technical Details and Features

This Denso A/C compressor (part number 471-9144) is built to meet the specific requirements of various GM vehicles including Buick, Oldsmobile, and Pontiac models. The compressor is compatible with R134a refrigerant, which is standard in many late-model air conditioning systems. The clutch has a maximum diameter of 130.0 mm, ensuring proper engagement with the serpentine belt system. The three ear mount design provides a secure fitment, reducing vibration and improving longevity.

Applications and Common Issues Addressed

This A/C compressor is used to maintain proper air conditioning function in compatible vehicles. It helps resolve issues such as:

• Loss of cooling due to compressor failure
• Clutch slippage or failure affecting A/C engagement
• Noise or vibration caused by worn compressor mounts
• Leaks or inefficiency related to incompatible refrigerant types
• Reduced airflow or cooling performance in Buick, Oldsmobile, and Pontiac A/C systems

Installation Notes and Tips

When installing the Denso 471-9144 A/C compressor, ensure the system is properly evacuated and recharged with R134a refrigerant. Verify the serpentine belt routing and tension to match the clutch pulley diameter of 130.0 mm. The three ear mount requires correct alignment and torque specifications to avoid premature wear or noise. It is recommended to inspect related components such as the receiver drier and expansion valve during installation.

Quality Assurance and Warranty

Denso manufactures this A/C compressor to meet OEM standards for fit, form, and function. The part number 471-9144 undergoes rigorous quality control to ensure durability and performance in Buick, Oldsmobile, and Pontiac vehicles. Warranty coverage details should be confirmed at the point of purchase, typically including protection against defects in materials and workmanship.