Radiator Reservoir Cap 1640531100

This 100% Genuine New Radiator Reservoir Cap is engineered to maintain the precise pressure required for your vehicle's cooling system. Designed as a direct replacement for OEM 16405-31100, this cap ensures a hermetic seal to prevent coolant evaporation and overheating. Constructed from high-grade, heat-resistant thermoplastic, it provides long-term durability and system integrity under extreme thermal cycling.

Technical Specifications

• OE Number: 16405-31100
• Interchange Numbers: 16405-31100, 1640531100
• Material: High-Temperature Reinforced Polymer
• Quality: 100% Genuine New OEM Standard

Detailed Fitment

• Model: Toyota Camry | Years: 2007-2017 | Details: Chassis XV40/XV50 [2AR-FE/2GR-FE]
• Model: Toyota Highlander | Years: 2008-2019 | Details: Chassis GSU40/GSU50 [2GR-FE/1AR-FE]
• Model: Lexus RX350 | Years: 2010-2015 | Details: Chassis GGL10 [2GR-FE]
• Model: Toyota RAV4 | Years: 2006-2018 | Details: Chassis ASA33/ZSA42 [2AR-FE/2GR-FE]

Dynamic Category Benefits

• Category: Cooling System Components

Highlights

• Maintains optimal system pressure to prevent coolant boiling
• Precision-molded threads for a secure, leak-proof fit
• Resistant to chemical degradation from long-term coolant exposure

Disclaimer

Notice: Fitment may vary. Please verify your VIN (Vehicle Identification Number) with us before purchasing to ensure 100% fitment.