Nissens 999995 A/C Expansion Valve

Nissens A/C Expansion Valve for Toyota and Lexus

The Nissens 999995 thermal expansion valve is a block-style A/C flow restrictor built with an aluminum body for precise refrigerant control. It is engineered to OE-matching standards for pressure performance, tightness, opening behavior, set-point accuracy, and internal finish.

Compatible With select Toyota Camry, RAV4, Corolla, Venza, Avalon, C-HR, Corolla Cross, GR Corolla, Crown Signia, and Lexus ES, UX models using R134 refrigerant.

Key Features

• Block-style A/C expansion valve for refrigerant metering
• Aluminum construction for HVAC service applications
• Designed for R134 refrigerant systems
• O-rings included for sealing at installation
• Mounting hardware included where applicable
• OE-matching validation for pressure, tightness, and opening performance

Detailed Description

Nissens 999995 is a thermal expansion valve used in automotive air conditioning systems to regulate refrigerant flow into the evaporator. By controlling how much refrigerant enters the system, it helps maintain stable cooling performance and proper evaporator operation. This part cross-references UAC EX529514C for the same application.

Vehicle coverage includes 2018-2025 Toyota Camry, 2019-2025 Toyota Corolla, 2022-2025 Toyota RAV4, 2019-2022 Toyota Avalon, 2019-2022 Toyota C-HR, 2019-2024 Toyota Camry, 2023-2025 Toyota GR Corolla, 2023 Toyota Corolla Cross, 2024 Toyota Venza, 2025 Toyota Crown Signia, plus Lexus ES250, ES350, UX200, UX250h, and UX300h applications. Part number 999995 is also referenced by OE numbers 8851506160 and 8851533080.

What It Helps Address

• Weak or inconsistent cabin cooling
• Incorrect refrigerant metering at the evaporator
• Compressor cycling caused by flow control issues
• HVAC performance problems after A/C service
• Leaks at the valve connection points when seals are worn

Installation Notes and Tips

Replace the valve when servicing the A/C system if inspection shows contamination, sticking, or seal wear. Use the included O-rings and mounting hardware where applicable, and verify the system is evacuated, leak-checked, and charged with the correct R134 refrigerant specification before returning the vehicle to service. Confirm exact fitment by year, model, and any listed notes such as Japan-built or dual climate control applications.

Quality Assurance

Nissens manufactures this expansion valve under controlled testing and validation procedures for pressure performance, sealing integrity, opening characteristics, set-point accuracy, and internal finish to match OE requirements.