Denso 471-9139 A/C Compressor

Denso 471-9139 A/C Compressor Overview

The Denso 471-9139 A/C compressor is a factory-new replacement built for vehicles that use R134A refrigerant, a serpentine belt drive, and a four-ear mount. As an OE supplier to major vehicle manufacturers, Denso builds this compressor to match original equipment fit and function for straightforward replacement on select Buick, Chevrolet, Oldsmobile, and Pontiac applications.

Compatible With 1994-1996 Buick Century, 1994-1995 Buick Regal, 1994-1996 Chevrolet Lumina, 1995-1996 Chevrolet Monte Carlo, 1994-1996 Oldsmobile Cutlass Ciera, 1994-1996 Oldsmobile Cutlass Supreme, 1994-1996 Pontiac Grand Prix, and 1994 Oldsmobile Cutlass Cruiser.

Key Features

• Part number: 471-9139
• Refrigerant type: R134A
• Serpentine belt pulley design
• Four-ear mount configuration
• Clutch maximum diameter: 107.0
• Factory-new compressor built to OE standards
• OE supplier engineering for original-fit replacement

Detailed Description

Denso 471-9139 is an A/C compressor for select GM vehicles from the mid-1990s, including Buick Century and Regal, Chevrolet Lumina and Monte Carlo, Oldsmobile Cutlass Ciera, Cutlass Supreme, Cutlass Cruiser, and Pontiac Grand Prix. It is specified for R134A systems and uses a serpentine belt pulley with a four-ear mount, making it important to verify the mounting style and clutch dimensions before installation. Denso’s OE background means this compressor is built with the same system knowledge used in original vehicle development, helping support proper fit and dependable air conditioning performance.

This part cross-references Four Seasons 57993 for the same application.

Common A/C Problems This Part Can Address

• Loss of cabin cooling from compressor wear or internal failure
• Noisy A/C operation caused by a failing compressor assembly
• Inconsistent refrigerant circulation in an R134A system
• Compressor clutch engagement issues tied to a worn unit
• Restoring A/C function on a 1994-1996 Buick Century or 1994-1996 Pontiac Grand Prix

Installation Notes and Tips

Confirm the vehicle uses R134A refrigerant and a four-ear mount before ordering. Match the serpentine belt drive and clutch diameter to the original compressor, and inspect the system for contamination, leaks, and related wear before replacing the unit. For best results, evacuate and recharge the system according to factory service procedures after installation.

Quality Assurance

Denso manufactures this compressor to strict OE standards and tests it as a factory-new replacement. The brand’s role as an original equipment supplier supports accurate fitment and consistent build quality for the listed Buick, Chevrolet, Oldsmobile, and Pontiac applications.