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OE Quality
60-Day Returns
StantPart #: 49408
Stant 49408 Engine Coolant Thermostat / Water Outlet Assembly
⚙️ 49 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$47.62Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Integrated Thermostat Housing
🚗Fitment: Lexus, GS300, GS350, GS450h, IS250, IS300, IS350, RC300, and RC350
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Engine Coolant Thermostat / Water Outlet Assembly options
Stant 49408 Engine Coolant Thermostat / Water Outlet Assembly
| Brand | Stant |
| Part Number | 49408 |
| Position | Integrated Thermostat Housing |
| Bypass Plate Diameter (in) | 1.17 |
| Flange Diameter (With Seal) (in) | 1.57 |
| Flange Diameter (Without Seal) (in) | 2.42 |
| Freight Class | 70 |
| Height from Flange to Bottom (in) | 1.67 |
| Temperature (F) | 180 degrees |
This part fits 49 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2018 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2018 | Lexus | IS300 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2017 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2017 | Lexus | IS300 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2017 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2017 | Lexus | RC300 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2016 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2016 | Lexus | IS300 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2016 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2016 | Lexus | RC300 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2016 | Lexus | RC350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2015 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2015 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2015 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2015 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2015 | Lexus | RC350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2014 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2014 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2014 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2014 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2013 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2013 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2013 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2013 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2012 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2012 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2011 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2011 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2011 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2011 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2010 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2010 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2010 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2010 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2009 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2009 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2009 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2009 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2008 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2008 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2008 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2008 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2007 | Lexus | GS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2007 | Lexus | GS450h | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2007 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2007 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2006 | Lexus | GS300 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2006 | Lexus | IS250 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
| 2006 | Lexus | IS350 | N/A | Temperature 180 Degrees; Integrated Thermostat Housing |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.