Compatible with: 2011-2020 Toyota Sienna LE, SE, STD, XLE|4 Cyl 2.7L, 6 Cyl 3.5L; 2010-2015 Lexus RX350 STD|6 Cyl 3.5L; 2010-2015 Lexus RX450h STD|6 Cyl 3.5L
Good Sealing: Made of high-quality materials, it can effectively seal the coolant reservoir and prevent coolant leakage
Maintain Cooling System Pressure: Adjust the internal pressure to prevent the coolant from boiling or damage to the cooling system due to excessive pressure