Denso 471-1221 A/C Compressor

Denso 471-1221 A/C Compressor for Lexus GS300

Denso 471-1221 is a factory-new A/C compressor built to OE standards for R134A systems. It is a direct-fit option for 1998-2005 Lexus GS300 applications and is engineered for the correct pulley, mounting, and compressor configuration.

Key Features

• Refrigerant type: R134A
• Serpentine pulley belt type for proper belt routing
• Ear and tangent mounting type
• Clutch maximum diameter: 120.0
• OE-supplier design and testing for factory-style fit and operation

Product Details

Denso 471-1221 is an A/C compressor for 1998-2005 Lexus GS300 models. As an OE supplier, Denso builds this compressor to match original equipment specifications, helping restore proper refrigerant circulation and system performance in vehicles using R134A. This part cross-references Four Seasons (e.g., 77371, 78371) for the same application. It also aligns with Toyota and Lexus OE part numbers used on the same vehicle platform, making it a practical choice when replacing a worn or failed compressor on a Lexus GS300.

Common Problems This Part Can Address

• No cold air from the vents
• Compressor noise or seizure
• Weak A/C performance at idle or low speed
• Refrigerant circulation issues in the HVAC system
• Clutch engagement problems tied to compressor wear

Installation Notes and Tips

Verify the vehicle uses R134A refrigerant before installation. Confirm pulley belt type, mounting style, and clutch diameter against the original compressor on the Lexus GS300. Replace the compressor only after diagnosing the full A/C system, and inspect related components for contamination, leaks, or restriction before charging the system.

Quality Assurance

Denso manufactures this compressor to strict OE standards and tests it as a factory-new replacement part. Because Denso is an original equipment supplier, 471-1221 is built with the fit and operating characteristics expected for the listed Lexus GS300 applications.