See all Universal & Repair products
Product thumb
HPS Performance Products Blue 3.5 to 5 Inch 4-Ply Reinforced Silicone Reducer Coupler Hose
$91.39

HPS Performance HTSR-350-500-L4-BLUE Silicone Reducer Coupler Hose

If you're looking to upgrade your vehicle's intake or cooling system, the HPS 3-1/2" - 5" (89mm - 127mm) High Temp 4-ply Reinforced Blue Silicone Reducer Coupler Hose is a must-have. Designed to meet and exceed SAEJ20 industry standards, this silicone hose is engineered for heavy-duty pressure connections, making it ideal for high-temperature applications. Whether you're tackling a custom turbo setup, intercooler piping fabrication, or a DIY intake project, this coupler hose is built to perform.

Fitment

This silicone reducer coupler hose is versatile enough to fit various applications across different vehicles. Whether you own a turbocharged Subaru WRX or a classic Ford Mustang, this coupler hose is engineered to meet the demands of your setup.

Technical Specifications

  • Product Type: Silicone Reducer Coupler Hose
  • Color: Blue
  • Inside Diameter: 3.5" - 5" (89mm - 127mm)
  • Outside Diameter: 3.9" - 5.39" (99mm - 137mm)
  • Length: 4"
  • Reinforced Layer: 4-ply Polyester
  • Max. Temperature Rating: 350°F (177°C)
  • Wall Thickness: 4.5mm (+/- 0.5mm)
  • UV and Ozone Resistant: Yes
  • Oil-Resistant: No
  • UPC: 648044837161

Features

  • Constructed from high-temperature 4-ply reinforced silicone for durability
  • Exceeds SAEJ20 standards for heavy-duty applications
  • Perfect for marine and industrial use, as well as custom turbo and intercooler setups
  • Resistant to UV and ozone degradation
  • Not compatible with fuel or oil, ensuring optimal performance in air and water systems

Customer Feedback

"I installed the HPS reducer coupler on my 2021 Ford F-150 for a custom intercooler setup. The fit was spot on, and it holds up great under pressure, even during heavy towing. Highly recommend for anyone looking to upgrade their intake system!"

"Using this coupler hose on my 2020 Subaru WRX has made a noticeable difference in airflow. It fits perfectly and the color adds a nice touch to the engine bay!"

Upgrade your vehicle's performance and reliability with the HPS HTSR-350-500-L4-BLUE silicone reducer coupler hose. Built for enthusiasts who demand quality and performance, this hose is your next step towards achieving your automotive goals.

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.

Check out these other great products