A-Premium AC Expansion Valve — Direct-Fit for Toyota, Lexus & Cadillac, OEM-Match Refrigerant Metering

The A-Premium AC expansion valve is a direct-fit replacement component that restores proper refrigerant flow for compatible Toyota, Lexus, Cadillac and Jaguar air conditioning systems.

This precision replacement valve from A-Premium is designed for vehicles that require the listed reference numbers and specific fitments. It controls refrigerant metering to help the HVAC system maintain consistent cabin temperatures and efficient compressor operation. Each unit is manufactured to match OEM mounting and connection points so installation is straightforward for professional technicians or experienced DIYers.

Which vehicles will this expansion valve fit?

This valve covers a wide selection of Toyota, Lexus, Cadillac and Jaguar models across multiple years and engine sizes. Always cross-check the vehicle’s part reference numbers and confirm whether the valve is for the front side (when noted) before ordering.

• Cadillac: CTS (2008–2015 various engines), STS (2005–2011 range) — multiple displacements supported.
• Jaguar: XF/XFR/XJR/XJ models (2010–2019) including 2.0L up to 5.0L variants.
• Lexus & Toyota: ES350, RX350/RX450h, Avalon, Camry, Highlander, Sienna, Venza across 2005–2015 model years.

How do I confirm the part matches my vehicle?

Check the factory reference numbers on your original valve or in the service manual and compare them to the A-Premium listing. Confirm model year, engine displacement and whether the valve is specified for a particular side (for example, Highlander and Sienna front side only).

• Reference numbers: 4752068, 39186, 19129999, 3411849, 8851507030, 8851508100, 8851533020, 89022549, C2Z6539.
• Verify vehicle: year, trim, and engine size before purchase to avoid returns.
• For Highlander and Sienna, note the valve is for the front side only.

What should I expect during installation and performance?

The part is engineered to match OEM footprint and connections, so replacement typically follows the factory procedure without modifying lines or brackets. After installation and proper system evacuation/recharge, the valve helps regulate refrigerant flow, contributing to steady airflow and temperature control.

• Direct-fit design reduces installation time when following service manual steps.
• Compatible with standard AC service procedures: evacuate, vacuum, and recharge with correct refrigerant and oil.
• Works with factory expansion system components when matched to correct part number.

What warranty and quality assurances come with this A-Premium valve?

A-Premium backs this air conditioning thermal expansion valve with a one-year, unlimited-mileage guarantee to cover manufacturing defects. The kit is produced to meet aftermarket fit and function expectations for replacement HVAC components.

• One-year unlimited-mileage warranty included for buyer assurance.
• Manufactured to aftermarket quality standards for long-term durability.
• Sold as an individual valve kit intended for professional or experienced DIY installation.

Who is this for: This A-Premium expansion valve is intended for owners and mechanics replacing a faulty or incompatible thermal expansion valve on the listed Toyota, Lexus, Cadillac or Jaguar models. It suits garages and knowledgeable DIYers who can verify part numbers, perform AC system service procedures, and ensure proper refrigerant handling. If you need a direct-fit aftermarket replacement with a clear parts cross-reference and a one-year warranty, this valve is engineered to meet those needs.