Designed to hold system pressure of 1.1 bar (108 kPa), ensuring proper cooling system operation.
Seals the radiator filler neck to prevent coolant leaks or vapor escape
Helps raise coolant boiling point under pressure, improving thermal stability
Built to OEM quality standards by DENSO for reliability and compatibility
Suitable as a direct replacement for vehicles originally using cap spec 022510-4170
Compact, durable construction to resist wear and maintain seal over time
Commonly matched to Toyota / Lexus cooling systems (interchangeable with part 16401-28280 etc.)
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