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HPS Performance Products 4.5" (114mm) Black 4-Ply Silicone Hump Coupler Hose 4" Length
$64.44

If you’re looking for a reliable silicone hump coupler hose that can take a beating, the HPS 4-1/2" (114mm) High Temp 4-ply Reinforced Hose is worth checking out. I’ve had my hands on this piece for a while now, and it’s been a solid performer in various setups. Whether you’re working on a turbo system or need something for your DIY radiator cooling, this hose has got you covered.

First off, let’s talk about durability. This hose is built tough with a 4-ply silicone construction that meets and exceeds SAEJ20 industry standards. That means it’s designed to handle heavy-duty pressure connections without flinching. I’ve used it in high-temperature scenarios, and it holds up like a champ, with a temperature range from -65°F to a scorching 350°F (or about 177°C for those who prefer metric).

One of the standout features is how well it compensates for misalignment and vibration. If you’ve ever dealt with a setup that just wouldn’t sit right, you know how crucial that is. Plus, it's UV and ozone resistant, so you don’t have to worry about it breaking down in the sun or harsh conditions.

Dimensions-wise, it’s got an inside diameter of 4.5 inches (114mm) and an outside diameter of about 4.89 inches (124mm). The wall thickness is around 4.5mm, which gives it that extra robustness. Just a heads-up—this hose isn’t compatible with fuel or oil, so keep that in mind when planning your projects.

Overall, if you need a dependable silicone hump coupler for marine, industrial, or even custom fabrication work, this hose is a solid choice. It’s not just about specs; it’s about performance, and this one delivers.

Features:
  • Made of High Temperature 4-ply Reinforced Silicone
  • Exceeds SAEJ20 standards for heavy-duty applications
  • Perfect for marine, industrial, and custom turbo setups
  • Compensates for misalignment and offsets vibration
  • UV and ozone resistant
  • Not compatible with fuel or oil
Specifications:
  • Product Type: Silicone Single Hump Coupler
  • Color: Black
  • Inside Diameter: 4-1/2" (114mm)
  • Outside Diameter: 4.89" (124mm)
  • Length: 4"
  • Reinforced Layer: 4-ply Polyester
  • Max Temperature Rating: 350°F
  • Wall Thickness: 4.5mm
  • UPC: 648044833804
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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