Replacement Thermostat. Is250 / Is350 06-12 / Gs350 / Gs450h 07-13 Thermostat, With Housing. Replacement RL31800001. OEM Part Number: 1603131020.
Specifications:- Product Fit: Direct Fit
- Quantity Sold: Sold Individually
- Notes: With Upper Housing (Water Outlet)
- Opening Temperature Rating: 180 degrees
- Replaces O E Number: 1603131020
- Warranty: 1-year, unlimited-mileage warranty
Vehicle Fitment:- 2006: Lexus GS300 Base 6 Cyl, 3.0L
- 2007-2013: Lexus GS350 Base 6 Cyl, 3.5L
- 2013: Lexus GS350 F Sport 6 Cyl, 3.5L
- 2007-2013: Lexus GS450h Base 6 Cyl, 3.5L
- 2006-2012: Lexus IS250 Base 6 Cyl, 2.5L
- 2010-2012: Lexus IS250 C 6 Cyl, 2.5L
- 2006-2012: Lexus IS350 Base 6 Cyl, 3.5L
- 2010-2012: Lexus IS350 C 6 Cyl, 3.5L