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HPS Performance Products 3" to 3.75" Black 4-Ply Reinforced Silicone Reducer Coupler Hose
$63.27

If you're diving into some serious engine work or custom builds, this HPS 3" to 3-3/4" silicone reducer coupler hose is a solid choice. It's made for those who need reliability under pressure and can handle the heat—literally. With a temperature range from -65°F to 350°F, this bad boy is built to last, even in the toughest conditions.

What really stands out is the 4-ply reinforced design. This isn't just your average hose; it’s got the muscle to take on heavy-duty pressure connections without breaking a sweat. Whether you're working on a turbo setup, an intercooler piping project, or even a DIY intake or radiator cooling system, this hose has you covered. Plus, it meets and exceeds SAEJ20 industry standards, so you know it’s up to the task.

Now, let’s talk fitment. The inside diameter ranges from 3" to 3.75" (76mm to 95mm), making it versatile for various applications. The outside diameter is between 3.39" and 4.13" (86mm to 105mm), and it’s 3" long with a wall thickness of about 4.5mm. Just keep in mind, this silicone hose isn't compatible with fuel or oil, so plan your setup accordingly.

  • High Temperature 4-ply Reinforced Silicone for durability
  • Perfect for marine and industrial use, as well as custom projects
  • UV and ozone resistant, so it won’t break down in the sun
  • Not suitable for fuel or oil, so stick to coolant and air

Overall, if you need a reliable reducer coupler hose that can take the heat and stand up to heavy-duty use, this HPS option is worth considering. It’s practical, tough, and ready to tackle whatever you throw at it.

Proposition 65

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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