Denso 471-9185 A/C Compressor

Denso 471-9185 A/C Compressor Overview

The Denso 471-9185 is a factory-new A/C compressor built for vehicles that use R134A refrigerant, a serpentine belt drive, and a three-ear mount. As an OE-supplier compressor, it is built to match original equipment specifications for proper fit and dependable air conditioning performance.

Compatible with Buick LeSabre, Buick Park Avenue, and Pontiac Bonneville applications, this compressor is a direct-fit choice for restoring cabin cooling on select GM vehicles.

Key Features

• Part number: 471-9185
• Refrigerant type: R134A
• Clutch maximum diameter: 130.0
• Pulley belt type: Serpentine
• Mounting type: Three ear mount
• Built to OE standards by Denso, an original A/C compressor supplier

Detailed Description

Denso 471-9185 is engineered as a new replacement compressor for select Buick and Pontiac vehicles, including 2000-2005 Buick LeSabre, 1997-2005 Buick Park Avenue, and 2000-2005 Pontiac Bonneville. Because Denso originally designed many of these systems as an OE supplier, this compressor is built to match the application’s original mounting and belt-drive requirements. If you are replacing a worn compressor on a Buick LeSabre, Buick Park Avenue, or Pontiac Bonneville, this part number 471-9185 provides a direct-fit service solution for the factory A/C system.

This part cross-references ACDelco 15-20453 and Delphi CS20009 for the same application.

What This Compressor Helps Address

• Loss of cabin cooling performance
• Noisy or seized compressor operation
• Refrigerant circulation problems in the A/C system
• Compressor replacement after internal wear or failure
• Restoration of proper A/C function on R134A systems

Installation Notes and Tips

Verify refrigerant type, clutch diameter, belt type, and mounting style before installation. This compressor is specified for R134A systems with a serpentine belt and three-ear mount, so matching the original vehicle configuration is important for correct fitment. Always inspect the A/C system for contamination, leaks, and related component wear before installing a replacement compressor.

Quality Assurance

Denso manufactures this compressor to strict OE standards 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 and Pontiac applications.