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HPS Performance Products 5/16 to 1/2 Inch Black Silicone Reducer Coupler Hose 4" Long
$18.13

If you're diving into some serious custom work on your ride or building out a project that needs some solid connections, the HPS 5/16" to 1/2" (8mm to 13mm) 4" Long High Temp Silicone Reducer Coupler Hose is worth your attention. This isn't just any hose; it's a heavy-duty piece of engineering designed to handle the heat and pressure that comes with high-performance applications.

Crafted from a robust 4-ply reinforced silicone, this coupler can handle temperatures ranging from a chilly -65°F up to a blistering 350°F. That means whether you're working on a turbo setup, an intercooler piping project, or even a DIY intake or radiator cooling system, this hose won't back down. It's built to exceed SAEJ20 industry standards, so you know you're getting something that can take a beating and keep performing.

One of the standout features is its UV and ozone resistance, which is a big deal if you're planning on using it in marine or industrial environments. The last thing you want is your hose degrading from sun exposure or harsh conditions. Just remember, while this silicone hose is tough, it’s not meant for fuel or oil—so keep that in mind when planning your setup.

In terms of specs, the inside diameter ranges from 5/16" to 1/2" (or 8mm to 13mm), and the outside diameter sits between 0.71" and 0.91" (18mm to 23mm). With a wall thickness of about 4.5mm, it’s built to last. And at 4 inches long, it’s just the right size for those tight spots where you need a reliable connection.

So whether you’re a weekend warrior working on your Jeep or a small business owner fabricating custom parts, this HPS silicone reducer coupler hose is a reliable choice that won't let you down.

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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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