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Denso 475-0512 A/C Expansion Valve - Front
| Brand | Denso 475-0512 |
|---|---|
| Position | Front |
| Type | Block valve |
| Product line | New Expansion Valve |
| Fits | Scion, Toyota, and Lexus · 17 vehicles |
Block valve design. Regulates refrigerant flow through the evaporator for proper A/C performance.
Critical A/C component. Helps maintain correct system operation and prevent evaporator freeze-up.
DENSO expertise. Built from decades of engineering A/C components and systems.
Cross-references Four Seasons 39143, Lexus 88515-60150 and Scion 88515-60150 for the same application. See all 4.
Denso New Expansion Valve 475-0512
Denso 475-0512 is a block-style A/C expansion valve that regulates refrigerant flow between the high- and low-pressure sides of the air conditioning system. For Toyota Corolla, Toyota Matrix, Scion tC, and Lexus GX470 applications, correct calibration helps the evaporator maintain proper heat exchange and stable cooling performance.
Key Features
- Block valve design for automotive A/C refrigerant control
- Separates suction and discharge sides of the air conditioning system
- Supports proper evaporator operation by metering liquid refrigerant
- OE-style replacement for select Toyota, Scion, and Lexus vehicles
- Part number 475-0512 for direct reference during lookup and service
Product Details
Denso’s New Expansion Valve line focuses on accurate refrigerant metering for factory-style HVAC performance. This expansion valve is built for select 2003 Lexus GX470 front A/C service, plus 2004-2008 Toyota Matrix, 2005-2008 Toyota Corolla, and 2005-2010 Scion tC applications. When the valve calibration is off, the evaporator can lose efficiency or freeze, which can lead to poor cabin cooling and added strain on the system. This part cross-references Four Seasons 39143 for the same application.
What It Helps Address
- Weak or inconsistent cabin cooling
- Evaporator icing or freeze-up
- Improper refrigerant metering through the evaporator
- Loss of A/C performance caused by a worn or incorrect valve
- Service replacement needs on Toyota Corolla, Toyota Matrix, Scion tC, and Lexus GX470 A/C systems
Installation Notes
- Verify the vehicle year, make, model, and A/C position before ordering.
- Confirm the block valve style matches the original component.
- Inspect the system for contamination or related A/C faults before installation.
- Use proper HVAC service procedures when opening the refrigerant circuit.
- For fitment, this part fits 2005-2010 Scion tC, N/A; fits 2005-2008 Toyota Corolla, N/A; fits 2004-2008 Toyota Matrix, N/A; fits 2003 Lexus GX470, Front.
Quality Assurance
Denso draws on decades of A/C engineering experience supplying components and systems to automakers. That OE-focused background supports accurate fitment and dependable refrigerant control for the listed applications.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2010 | Scion | tC | — | N/A | New Expansion Valve |
| 2009 | Scion | tC | — | N/A | New Expansion Valve |
| 2008 | Scion | tC | — | N/A | New Expansion Valve |
| 2008 | Toyota | Corolla | — | N/A | New Expansion Valve |
| 2008 | Toyota | Matrix | — | N/A | New Expansion Valve |
| 2007 | Scion | tC | — | N/A | New Expansion Valve |
| 2007 | Toyota | Corolla | — | N/A | New Expansion Valve |
| 2007 | Toyota | Matrix | — | N/A | New Expansion Valve |
| 2006 | Scion | tC | — | N/A | New Expansion Valve |
| 2006 | Toyota | Corolla | — | N/A | New Expansion Valve |
| 2006 | Toyota | Matrix | — | N/A | New Expansion Valve |
| 2005 | Scion | tC | — | N/A | New Expansion Valve |
| 2005 | Toyota | Corolla | — | N/A | New Expansion Valve |
| 2005 | Toyota | Matrix | — | N/A | New Expansion Valve |
| 2004 | Toyota | Matrix | — | N/A | New Expansion Valve |
| 2004 | Toyota | Matrix | XR | N/A | New Expansion Valve |
| 2003 | Lexus | GX470 | — | Front | Front A/C Expansion Valve; New Expansion Valve |
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