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HPS Performance Products High Temp 4.5" ID x 6" Long 4-Ply Black Silicone Coupler Hose - HTSC-450-L6-BLK
HPS Performance Products High Temp 4.5" ID x 6" Long 4-Ply Black Silicone Coupler Hose - HTSC-450-L6-BLK - Image 2 HPS Performance Products High Temp 4.5" ID x 6" Long 4-Ply Black Silicone Coupler Hose - HTSC-450-L6-BLK - Image 2

Alright, let’s talk about the HPS 4-1/2" (114mm) High Temp Silicone Straight Coupler Hose. This isn’t just any coupler; it’s built for those of us who know that performance matters. If you’re diving into some serious DIY projects—like custom turbo setups or intercooler piping—you’ll want this piece in your toolkit. It’s 6 inches long and made with a robust 4-ply design that can handle the heat, literally. We’re talking about a temperature range from a chilly -65°F to a blistering 350°F (177°C). So, if your setup is pushing the limits, this hose is up for the challenge.

Now, let’s get into the nitty-gritty. The inside diameter is 4.5 inches (114mm), which is perfect for connecting larger pipes without the hassle of leaks. The outside diameter is 4.89 inches (124mm), so you know it’s got some heft to it. The wall thickness is around 4.5mm, giving it that solid feel you want when you’re cranking up the pressure. Plus, it’s UV and ozone resistant, so it won’t break down in the sun or during those long runs.

Just a heads-up, though—this silicone hose isn’t meant for fuel or oil, so keep that in mind when you’re planning your setup. It’s specifically designed for high-temperature applications, making it a great fit for marine and industrial uses as well.

  • 4-ply reinforced silicone for serious durability
  • Meets SAEJ20 standards, ensuring it can handle heavy-duty pressure
  • Ideal for custom turbo and intercooler piping, as well as DIY intake or radiator systems
  • Resistant to UV and ozone, so it’ll last longer in harsh conditions
  • Not compatible with fuel or oil—keep that in mind!

So, if you’re looking for a reliable coupler that can stand up to the heat and pressure, the HPS High Temp Silicone Straight Coupler Hose is a solid choice. It’s tough, versatile, and ready to take your project to the next level.

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⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

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About HPS Performance Products

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 Hoses

HPS 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 Racing

Vivid 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.

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