Nissens 999376 A/C Expansion Valve

Reliable A/C Expansion Valve for Audi Models

The Nissens A/C Expansion Valve 999376 is engineered to maintain optimal air conditioning performance in select Audi vehicles. Designed specifically for models such as the Audi A6, A6 Quattro, A7 Quattro, RS7, S6, and S7, this valve ensures precise refrigerant flow control for efficient cooling.

• Constructed from durable aluminum for long-lasting use
• Compatible with R134a refrigerant systems
• Block-type expansion valve design for reliable operation
• Includes four O-rings to ensure a secure, leak-free seal
• Liquid inlet and outlet fitting thread diameters: 0.5500 and 0.4700 inches respectively
• Suction inlet and outlet fitting thread diameters: 0.6300 and 0.7100 inches respectively

Detailed Product Description

The Nissens A/C Expansion Valve 999376 is crafted from high-quality aluminum, providing corrosion resistance and durability under demanding HVAC system conditions. This block-type valve is designed to regulate the flow of R134a refrigerant precisely, ensuring consistent air conditioning performance in compatible Audi vehicles. The valve includes four O-rings, which are essential for maintaining a tight seal and preventing refrigerant leaks. The specific fitting thread diameters for both liquid and suction lines are engineered to match OEM specifications, facilitating a proper fit and reliable operation.

Applications and Common Issues Addressed

• Restores proper refrigerant flow in Audi A6, A6 Quattro, A7 Quattro, RS7, S6, and S7 air conditioning systems
• Resolves inconsistent cabin cooling or fluctuating temperatures
• Eliminates refrigerant leaks caused by worn or damaged expansion valves
• Prevents compressor damage due to improper refrigerant metering
• Addresses system inefficiencies related to faulty expansion valve components

Installation Notes and Tips

Ensure the HVAC system is fully evacuated and free of contaminants before installing the Nissens A/C Expansion Valve 999376. Verify that the O-rings are properly seated to prevent leaks. This valve does not include mounting hardware, so retain original fasteners or source appropriate replacements. Proper torque specifications should be followed to avoid damage to fittings and ensure a secure installation.

Quality Assurance and Warranty

Nissens manufactures this A/C Expansion Valve to meet stringent quality standards, ensuring reliable performance in compatible Audi models. The part number 999376 is backed by Nissens' quality control processes. Please refer to Nissens or authorized distributors for specific warranty details applicable to this product.