Nissens 999492 A/C Expansion Valve

OE-Matching A/C Expansion Valve

The Nissens 999492 A/C expansion valve is built for precise refrigerant control in modern HVAC systems using R1234YF. It is a fitment-based replacement for select Mazda applications and follows OE-matching standards for pressure performance, tightness, and opening behavior.

Key Features

• Developed to OE-matching standards for consistent expansion valve operation.
• Validated for pressure performance, tightness, opening, set-point setting, and inner finish.
• Configured for R1234YF refrigerant systems.
• Nissens 999492 is a direct-fit HVAC flow restrictor for select Mazda vehicles.

Detailed Description

Nissens thermal expansion valves are engineered with strict manufacturing control to deliver accurate refrigerant metering and stable HVAC performance. This part number, 999492, is intended for select Mazda CX-5 and Mazda 6 applications with R1234YF refrigerant, including Fits 2021-2025 Mazda CX-5, N/A and Fits 2021 Mazda 6, N/A. The valve is tested to verify pressure behavior, sealing, and opening characteristics so the system can regulate refrigerant flow as specified. Nissens 999492 is a practical replacement choice when restoring proper A/C operation in compatible Mazda HVAC systems.

What It Helps Solve

• Inconsistent refrigerant metering through the HVAC system.
• Poor A/C cooling performance caused by valve restriction issues.
• Refrigerant leakage concerns related to sealing performance.
• Improper system response from incorrect opening or set-point behavior.

Installation Notes and Tips

Verify refrigerant type and port dimensions before installation. Fitment includes 2021-2025 Mazda CX-5 and 2021 Mazda 6 applications with the listed inlet and outlet sizes. Follow proper HVAC service procedures, evacuate and recharge the system correctly, and inspect sealing surfaces before assembly. This part cross-references Monroe Shocks & Struts (e.g., CB1017V, KD4561J14) for the same application.

Quality Assurance

Nissens applies comprehensive testing and validation to control pressure performance, tightness, opening behavior, set-point setting, and internal finish to OE-matching standards.