{"product_id":"radium-radiator-caps","title":"Radium Radiator Caps — Parts \u0026 Options","description":"\u003cp\u003e\u003cstrong\u003eParts are sold separately.\u003c\/strong\u003e Select the exact part number below. Each selection adds only that part to your cart; add other required components separately. Photos and application details may show a complete system or optional accessories.\u003c\/p\u003e\u003ch3\u003eAvailable part numbers\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e18-0076-A11 Radiator Cap Type-A 1.1Bar Black\u003c\/li\u003e\n\u003cli\u003e18-0076-A13 Radiator Cap Type-A 1.3Bar Black\u003c\/li\u003e\n\u003cli\u003e18-0076-A15 Radiator Cap Type-A 1.5Bar Black\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe radiator cap is an essential part of an upgraded cooling system. Radium caps are engineered to safely improve cooling efficiency by managing the boiling temperature. A higher radiator pressure effectively raises the coolant boiling point, providing an extra safety margin and preventing air pocket cavitation at the water pump.\u003c\/p\u003e\n\u003cp\u003eEach OEM replacement radiator cap is manufactured from stamped stainless steel for durability. All 18-0076-X1X radiator caps are electroplated black. Unlike OEM caps which use natural rubber gaskets, these radiator caps feature premium silicone sealing elements for long lasting durability.\u003cbr\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003ePRESSURE\u003c\/h3\u003e\n\u003cp\u003eAvailable with 3 different pressure relief springs:\u003c\/p\u003e\n\u003cp\u003e1.1Bar (16.0psi)\u003cbr\u003e1.3Bar (18.9psi)\u003cbr\u003e1.5Bar (21.8psi)\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eCAP TYPES\u003c\/h3\u003e\n\u003cp\u003eRadium radiator caps are designed for mini size (32mm ID) radiator necks only. Available in Type-A. We no longer offer Type-B.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePlease confirm what style your application uses prior to ordering.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNOTE: All Radium Engineering coolant expansion tanks require a Type-A style radiator cap.\u003c\/em\u003e\u003c\/p\u003e","brand":"Radium Engineering","offers":[{"title":"18-0076-A11 Radiator Cap Type-A 1.1Bar Black","offer_id":67591210959121,"sku":"18-0076-A11","price":29.95,"currency_code":"USD","in_stock":true},{"title":"18-0076-A13 Radiator Cap Type-A 1.3Bar Black","offer_id":67591210991889,"sku":"18-0076-A13","price":29.95,"currency_code":"USD","in_stock":true},{"title":"18-0076-A15 Radiator Cap Type-A 1.5Bar Black","offer_id":67591211024657,"sku":"18-0076-A15","price":29.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/3681\/7425\/files\/Radiator_Caps-A.jpg?v=1790637913","url":"https:\/\/autoshopactive.com\/products\/radium-radiator-caps","provider":"Auto Shop Active","version":"1.0","type":"link"}