Four Seasons 78334 A/C Compressor

Reliable A/C Compressor for Lexus and Toyota Vehicles

The Four Seasons New Compressor 78334 is designed to restore efficient air conditioning performance in select Lexus and Toyota models. Engineered for compatibility with R134a refrigerant, this A/C compressor meets the specific needs of vehicles like the Toyota Camry, Avalon, ES300, and Solara.

• Compatible with R134a refrigerant and Pag 46 oil
• Includes oil-filled compressor and clutch assembly
• Equipped with a 6-groove serpentine pulley
• Features a 12-volt coil with 1 wire lead
• Includes an RPM sensor switch for precise operation
• Tangent mount type with pad mount suction and discharge ports
• Designed for Nippondenso 10pa17c compressor type
• Clutch maximum diameter and pulley lip diameter both 5.125 inches

Four Seasons New Compressor Product Line Overview

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to meet or exceed original equipment specifications. This product line focuses on delivering reliable performance and durability for HVAC systems in various vehicle makes and models. The 78334 compressor is part of this line, providing a complete assembly including clutch and speed sensor switch to simplify installation and ensure proper function.

Detailed Product Description and Specifications

This Four Seasons A/C compressor (part number 78334) is engineered for use with R134a refrigerant and compatible with Pag 46 refrigerant oil, ensuring proper lubrication and system longevity. The compressor features a 6-groove serpentine pulley with a diameter of approximately 130 mm (5.125 inches), designed to fit the belt systems of compatible Lexus and Toyota vehicles. The clutch assembly is included and matches the clutch maximum diameter of 5.125 inches, providing a seamless replacement experience.

The compressor uses a tangent mount type with pad mount suction and discharge ports, facilitating straightforward installation. It includes an RPM sensor switch and a 12-volt coil with a single wire lead, supporting accurate clutch engagement and system control. The terminal type is pin style, and the distance from clutch to mounting flange is approximately 2.27 inches, matching OEM specifications. Note that mounting hardware is not included, and the use of the original equipment manifold may be required.

Common Applications and Issues Addressed

• Restores A/C cooling performance in Lexus ES300 and Toyota Camry models
• Replaces worn or failed compressors causing insufficient refrigerant compression
• Resolves clutch engagement problems due to faulty clutch or coil
• Addresses refrigerant leaks from compressor seals or ports
• Eliminates abnormal noises from damaged or seized compressor components

Installation Notes and Tips

• Verify compatibility with vehicle make, model, and year before installation
• Use the original equipment manifold and gasket (O-ring 24156) as recommended
• Ensure proper refrigerant oil type (Pag 46) is used during system recharge
• Check belt alignment and tension on the 6-groove serpentine pulley
• Confirm electrical connections to the pin terminal and RPM sensor switch

Quality Assurance and Warranty Information

The Four Seasons New Compressor 78334 is a new, direct replacement part manufactured to meet OEM standards for fit and function. It includes an oil-filled compressor and clutch assembly to support reliable operation. While mounting hardware is not included, the product is designed for professional installation and backed by Four Seasons' quality control processes. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.