【Precise OE Replacement】16405-0P040 & 16405-31070. Precisely fits 2011-2017 Toyota Sienna (LE/SE/STD/XLE, 2.7L & 3.5L) and 2010-2015 Lexus RX350/RX450h (3.5L).
【Superior Seal】Precision-engineered seal maintains a tight closure on the reservoir. Effectively prevents coolant leakage to sustain proper engine temperature and avoid cooling system issues.
【Durable & Heat-Resistant Build】Constructed from high-quality, heat, corrosion, and wear-resistant materials for long-term durability and reliable performance.
【Optimal Pressure Regulation】Regulates cooling system pressure to prevent coolant boiling and engine overheating. Maintains proper pressure levels for efficient operation and system protection.
【Reliable Engine Protection】Ensure full cooling system function with this OEM-quality coolant overflow reservoir cap.