![Moroso Radiator Cap 19-21 lb Moroso Radiator Cap 19-21 lb](https://cdn.performancebodies.com/pbfilestore/PartsCatalog/imgPar564848_564848.jpg)
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• These high-pressure Moroso caps fit standard-size radiator filler necks and increase the boiling point to improve heat transfer
• They have a solid brass spring retainer and a stainless steel spring that maintain an accurate pressure setting over time and will not rust