Elevate your cooling system's reliability with the HPS Performance 1" high temperature reinforced black silicone cap. Designed specifically for automotive applications, this silicone cap is built to withstand the rigors of high temperatures and pressures, ensuring your vehicle runs smoothly under demanding conditions. Whether you're a Ford F-150 owner looking to secure your cooling system or a Subaru WRX driver needing a solid vacuum connection, this cap is engineered to meet your needs.
Unlike standard vacuum caps, which lack reinforcement and are only suitable for low-pressure applications, HPS silicone caps are reinforced with three layers of durable polyester webbing. This heavy-duty construction means they can handle the extreme conditions of your cooling system without failing. They're compatible with a variety of fluids and applications, making them a versatile addition to your automotive toolkit.
One satisfied Subaru WRX owner shared, "I installed the HPS silicone cap on my 2020 WRX, and it fit perfectly on the throttle body water port. It's reassuring to know that I have a reliable connection that can handle the heat." Another Ford F-150 owner mentioned, "This cap has been a game changer for my cooling system; no more leaks, and it looks great too!"
Upgrade your vehicle's cooling system with the HPS Performance 1" high temperature reinforced silicone cap and experience the difference in performance and reliability.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

HPS Performance Products is a leading manufacturer of aftermarket performance parts, fabrication components, and silicone hoses. HPS serves a number of different industries, including automotive, aerospace, construction, commercial truck/bus, marine, agricultural, turbo diesel, off-road, performance racing, general manufacturing, and water treatment. The company’s ability to fabricate custom-shaped multiply silicone hoses make it ideal for a wide range of applications. The multiply carcass makes HPS’ hose perfect for coolant and turbocharged pressure applications while the fluoro-silicone-lined hoses make it safe to be used with petroleum-based oil and fuel.
HPS Performance Products is committed to meeting its original goals of producing quality parts at competitive pricing and providing customer service responses in a personal, timely manner. All HPS products have been thoroughly tested on the dyno and track, and meet or exceed SAEJ20 standards. The HPS staff has solid expertise in the silicone hose department, which allows them to deliver standard size silicone hoses with same-day shipping. HPS’ highly skilled and knowledgeable team, paired with the latest state-of-the-art technology, ensures the brand’s continued success and reputation as a premier manufacturer in the industry
HPS Quality Silicone HosesHPS Performance Products specializes in and is best known for manufacturing multi-application silicone hoses. HPS silicone hoses are carefully crafted from only the highest quality 4-ply reinforced high-temperature material. The hoses are available in the following varieties: straight coupler, 1-foot tube, 3-foot coolant tube, charge air cooler hose (CAC), hump coupler, reducer couple her, 45-degree elbow coupler and reducer, and 90-degree elbow coupler and reducer.
HPS Performance Products also carries performance silicone vacuum hoses and silicone heater hoses. You can choose silicone hoses in both standard inch and hard-to-find metric sizes. Stainless steel T-bolt clamps are available to match with the silicone hoses as well. In order to meet the high demand and shorten the turnaround time for its silicone hoses, up to 90 percent of the product is already in stock and ready to ship or pick up from HPS authorized dealers like Vivid Racing.
HPS Performance Products at Vivid RacingVivid Racing carries a comprehensive lineup of HPS Performance Products for a number of different makes, models, and applications. Our extensive inventory of HPS parts includes aluminum tubing, cold air and short ram intakes, vacuum lines, hoses and clamps, intercooler pipes, radiator caps, and much more! If you have any questions regarding the items listed above or have fitment concerns, please contact our expert sales team at (480) 966-3040. We are here to help you through the entire purchase process and make it a pleasant experience.