Denso 471-1378 A/C Compressor

Reliable A/C Compressor for Toyota Prius

The Denso 471-1378 A/C compressor is designed specifically for Toyota Prius models using R134a refrigerant. Engineered to meet OEM specifications, this compressor ensures efficient climate control performance and durability.

• Compatible with Toyota Prius vehicles
• Uses R134a refrigerant for optimal cooling
• Clutch maximum diameter of 115.0 mm
• Serpentine pulley belt type for smooth operation
• Bolt tangent mounting type for secure installation

Technical Details and Features

This Denso A/C compressor (part number 471-1378) is built to handle the specific requirements of the Toyota Prius HVAC system. It operates with R134a refrigerant, which is standard for many modern vehicles, ensuring compatibility and environmental compliance. The clutch has a maximum diameter of 115.0 mm, providing reliable engagement and disengagement during operation. The serpentine pulley belt type allows for efficient power transfer and reduced wear. The bolt tangent mounting type offers a secure and precise fit, minimizing vibration and enhancing longevity.

Applications and Problem Resolution

This A/C compressor is intended for use in Toyota Prius models requiring replacement or upgrade of the HVAC compressor component. It addresses several common issues, including:

• Loss of cooling performance due to compressor failure
• Unusual noises from worn or damaged clutch assemblies
• Inconsistent compressor engagement affecting cabin temperature
• Leaks or refrigerant circulation problems within the A/C system
• Wear from pulley or mounting misalignment

Installation Notes and Tips

When installing the Denso 471-1378 A/C compressor on a Toyota Prius, ensure the system is properly evacuated and recharged with R134a refrigerant. Verify the clutch maximum diameter matches the vehicle specifications to avoid fitment issues. Use the bolt tangent mounting points for secure attachment and confirm the serpentine belt is correctly routed and tensioned. It is recommended to inspect related components such as the condenser, receiver-drier, and expansion valve during installation.

Quality Assurance and Warranty

Denso manufactures this A/C compressor to meet strict quality standards, ensuring reliable operation and durability. The part number 471-1378 undergoes rigorous testing to comply with OEM requirements. Warranty coverage details should be confirmed at the point of purchase, but Denso products typically include a limited warranty against defects in materials and workmanship.