Toyota Yaris P9 2 Air Conditioning A/C Expansion Valve Ventil 4475003070

Toyota Yaris P9 2 Air Conditioning A/C Expansion Valve is an original cabin cooling system component designed for precise control of refrigerant expansion within the air conditioning system. Thanks to the factory Toyota design, this valve ensures stable operating parameters, which translates into efficient interior cooling and predictable performance of the entire system.

Specifications and technical data

• SKU: 4475003070
• Mark: Toyota
• Condition: Used
• OEM Part Number: 4475003070
• Substitutable numbers: 4475003070, 44750-03070
• Part type: A/C Expansion Valve
• Category: A/C Expansion Valves

Purpose and function in the air conditioning system

The expansion valve in the Toyota Yaris P9 is responsible for the controlled reduction of refrigerant pressure before it enters the evaporator. A properly functioning component:

• stabilizes the pressure and temperature of the refrigerant in the evaporator,
• reduces the risk of evaporator freezing under varying operating conditions,
• allows for consistent, comfortable cabin cooling,
• supports compressor efficiency by reducing its load. As a result, the air conditioning system operates predictably, and the driver and passengers experience stable thermal comfort even during extended use in urban conditions.

Original origin and fitment for Toyota Yaris P9

The presented expansion valve comes from the group of original Toyota components, which means maintaining factory flow parameters and regulation characteristics. In practice, this translates into:

• a secure fit for the air conditioning system in the second-generation Yaris P9,
• compatibility with the factory calibration of the compressor and evaporator,
• no need for system modifications during installation. An original expansion valve is particularly beneficial where predictable system behavior and compliance with the manufacturer's service documentation are prioritized.

Characteristics of the used component

The offered expansion valve is a secondary market component, which allows for reduced repair costs while maintaining the factory design. A used component of this type is a popular choice for vehicles used on a daily basis, where the priority is a reasonable price-to-functionality ratio. A valve of this type, sourced from an original air conditioning system, provides a solid foundation for restoring system efficiency without resorting to cheaper replacements with uncertain parameters. If you want to better understand why choosing proven secondary market components is a beneficial choice for older models, check out the article The myth of the perfect new part – why a used factory part is the only reasonable solution for older cars, which discusses this service strategy in detail.

Support for complete air conditioning system maintenance

When working on the air conditioning in a Toyota Yaris, it is worth treating the expansion valve as a component that works in conjunction with the evaporator, compressor, condenser, and refrigerant lines. Replacing this component is often combined with servicing the entire system – including drying, leak testing, and refrigerant refilling – to fully utilize the potential of the newly installed part and minimize the risk of repeated service interventions. If you are planning a comprehensive repair or upgrade of the air conditioning area in your Toyota Yaris and need other items from the same group, such as additional valves, flow control elements, or components working with the evaporator, check the available parts in the Toyota Expansion Valves category.

Summary

Toyota Yaris P9 2 Air Conditioning A/C Expansion Valve is a factory cabin cooling system component designed specifically for the requirements of this model. Choosing an original expansion valve from the secondary market allows you to maintain the operating characteristics intended by the manufacturer while optimizing service costs. It is a practical solution for users who expect stable air conditioning performance and want to restore its functionality in a technically correct manner.