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HPS Performance Products 3" to 3.25" ID x 4" Long Blue Silicone Reducer Coupler Hose - HTSR-300-325-L4-BLUE
HPS Performance Products 3" to 3.25" ID x 4" Long Blue Silicone Reducer Coupler Hose - HTSR-300-325-L4-BLUE - Image 2 HPS Performance Products 3" to 3.25" ID x 4" Long Blue Silicone Reducer Coupler Hose - HTSR-300-325-L4-BLUE - Image 2

Alright, let’s talk about the HPS 3" to 3-1/4" (76mm - 83mm) silicone reducer coupler hose. If you're diving into a custom build or just need a solid connection for your turbo or intercooler setup, this is the piece you want. It's 4 inches long and made from a tough, high-temp 4-ply reinforced silicone. Seriously, this stuff can handle temperatures from -65°F to a blazing 350°F (that's about -54°C to 177°C for the metric folks). So, whether you’re pushing some serious boost or just need a reliable connection for your radiator, this hose has got your back.

What I really like about this coupler is its versatility. It's not just for cars; it works great in marine setups and industrial applications too. If you're into DIY projects, you can use it for intake systems or cooling setups without worrying about it collapsing under pressure. Plus, it’s UV and ozone resistant, so it won't degrade sitting out in the sun or exposed to the elements.

Now, let’s get into the nitty-gritty. The inside diameter ranges from 3" to 3-1/4" (76mm - 83mm), which means it’s perfect for those custom piping jobs where you need a snug fit. The outside diameter measures between 3.39" and 3.66" (86mm - 93mm), so make sure your fittings can accommodate that. The wall thickness is about 4.5mm, which gives it that extra durability you want when things get hot and heavy.

Just a heads up, this silicone hose isn’t compatible with fuel or oil, so keep that in mind when planning your setup. But for everything else, it’s a solid choice that meets and exceeds SAEJ20 standards. If you’re looking for a reliable, high-temp coupler that can handle the heat, this is it.

Features:
  • High-temp 4-ply reinforced silicone for durability
  • Great for heavy-duty pressure connections
  • Versatile for marine, industrial, and custom applications
  • UV and ozone resistant
  • Not compatible with fuel or oil
Specifications:
  • Color: Blue
  • Inside Diameter: 3" - 3-1/4" (76mm - 83mm)
  • Outside Diameter: 3.39" - 3.66" (86mm - 93mm)
  • Length: 4"
  • Reinforced Layer: 4-ply Polyester
  • Max Temperature Rating: 350°F
  • Wall Thickness: 4.5mm
  • UPC: 648044836744
Proposition 65

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

HPS Performance Products Logo

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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