---
product_id: 332057009
title: "3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic"
brand: "ohob-cool"
price: "224.66 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Ohob Cool"
url: https://www.desertcart.tn/products/332057009-3-5-to-4-inch-silicone-reducer-coupler-hose-id
store_origin: TN
region: Tunisia
---

# 4-ply reinforced, 5.4mm thick durability ID 3.5" to 4" (89-102mm) precision fit Temp resistant -76°F to 500°F (-60°C to 260°C) 3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic

**Brand:** ohob-cool
**Price:** 224.66 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your boost game with the ultimate silicone reducer coupler! 💨

## Quick Answers

- **What is this?** 3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic by ohob-cool
- **How much does it cost?** 224.66 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/332057009-3-5-to-4-inch-silicone-reducer-coupler-hose-id)

## Best For

- ohob-cool enthusiasts

## Why This Product

- Trusted ohob-cool brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Compatibility:** Ideal for air, water, and coolant systems—perfect for racing, heavy machinery, marine, and military vehicles.
- • **Extreme Temperature Resilience:** Operates flawlessly from freezing -76°F to scorching 500°F, perfect for high-heat industrial and automotive environments.
- • **Precision Fit for Peak Performance:** Seamlessly transitions between 3.5" and 4" piping for custom turbo and intercooler setups.
- • **Unmatched Durability with 4-Ply Reinforcement:** Engineered with 4 robust silicone layers and 5.4mm thickness to withstand heavy-duty pressure up to 130.5 psi.
- • **UV & Ozone Resistant for Long-Term Reliability:** Built to endure harsh outdoor conditions without cracking or degrading, ensuring longevity in any application.

## Overview

The OHOB-COOL 3.5 to 4 inch silicone reducer coupler hose is a high-performance, 4-ply reinforced silicone transition hose designed for demanding turbo, intercooler, and industrial hydraulic applications. With a precise ID range of 89-102mm, 5.4mm wall thickness, and temperature resistance from -76°F to 500°F, it meets SAEJ20 standards and withstands pressures up to 130.5 psi. UV and ozone resistant, this durable hose is perfect for professional-grade automotive, heavy equipment, marine, and military use, ensuring reliable performance under extreme conditions.

## Description

black 3.5 inch - 4 inch (89mm - 102mm) ID with 3 inch Length high Temp 4-ply reinforced silicone Reducer coupler hose (maximum working pressure: 130.5 psi. Maximum temperature rating: 500F) meet and exceed SAEJ20 industry standards, ideal for heavy duty pressure connections and provides excellent resistance for high temperature applications. Wall thickness: 5.4mm. Temperature range: -76 degree F to +500 degree F (177 degree C). UV and ozone resistant. performance silicone reducing transition coupling hose is designed and engineered to meet high performance requirements specified in various industry standards, such as automotive Racing industry, Turbo diesel pickup truck, heavy duty equipment and machine, custom cooling system, DIY Turbo intercooler piping fabrication, commercial trucking, buses and coaches, marine, military vehicles, aerospace, generators, agricultural tractors, and general construction. Silicone hose is not compatible with fuel or oil; however it is compatible with air, water and Anti-Freeze such as coolant

Review: Holding 15psi boost on a 900hp big block... Read for more... - This review is for the 3"-3.5" ID 45 Degree Elbow silionce Coupler Reinforced Hose,4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic, which was selling for $19 at the time of this review - SEE MY NOTE at the end of this review. Installed this on a custom turbo setup and it is holding 15 pounds of boost easily and was inexpensive. It is a little glossy for my taste but once the hood is closed and it gets dirty I will forget about that pretty quick. For this price I would have no problem ordering another one. NOTE - If you are not familiar with desertcart Vine, it is basically desertcart trading products for honest reviews. NOTE that the items are NOT Free because Vine Members have to pay Income Tax on the value of the item, so the product is discounted but definitely not free, more like 1/3 to 1/2 price. As such, I don't order things that I don't NEED and USE!!! This is an important distinction because it should give you more faith that my reviews are not some fake nonsense boilerplate... I USE WHAT I ORDER, and I don't hold back if something is junk because I still had to pay for it... and this program actually bumped me up to a higher tax bracket in 2025, so it definitely wasn't free!
Review: Reducer’s - Fit perfect

## Features

- ID : 3.5" to 4"（89-102mm), Length: 3″(76mm),black
- Thickness: 5mm,Layers: 4ply
- Temperature resistance: -76F to 500F (-60C to 260C)
- Pressure resistance:0.3MPA to 0.9MPA
- High performance silicone transition coupling hose is designed and engineered to meet high performance requirements specified in various industry standards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095HNCK8N |
| Best Sellers Rank | #96,591 in Automotive ( See Top 100 in Automotive ) #53 in Car Engine Intercooler Parts |
| Brand | OHOB-COOL |
| Brand Name | OHOB-COOL |
| Color | Black |
| Colour | Black |
| Customer Reviews | 4.7 out of 5 stars 178 Reviews |
| Item Length | 3 Inches |
| Item Weight | 0.14 Kilograms |
| Item weight | 0.14 Kilograms |
| Manufacturer | hengxing |
| Material | Silicone |
| Material Type | Silicone |
| Maximum Pressure | 0.9 Kilopascal |
| Maximum pressure | 0.9 Kilopascal |
| Nominal Wall Thickness | 5.4 millimeters |
| Nominal wall thickness | 5.4 millimeters |
| Outside Diameter | 94 Millimeters |
| UPC | 645569097735 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** OHOB-COOL
- **Material:** Silicone
- **Colour:** Black
- **Item weight:** 0.14 Kilograms
- **Maximum pressure:** 100 Pound per Square Inch

## Images

![3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic - Image 1](https://m.media-amazon.com/images/I/51WQwvd3D-L.jpg)
![3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic - Image 2](https://m.media-amazon.com/images/I/51CgCSJFtlL.jpg)
![3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic - Image 3](https://m.media-amazon.com/images/I/51WwewHjh9L.jpg)
![3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic - Image 4](https://m.media-amazon.com/images/I/51kpTYzWHgL.jpg)
![3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic - Image 5](https://m.media-amazon.com/images/I/51F1rWKtRsL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Holding 15psi boost on a 900hp big block... Read for more...
*by B***S on 6 June 2026*

This review is for the 3"-3.5" ID 45 Degree Elbow silionce Coupler Reinforced Hose,4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic, which was selling for $19 at the time of this review - SEE MY NOTE at the end of this review. Installed this on a custom turbo setup and it is holding 15 pounds of boost easily and was inexpensive. It is a little glossy for my taste but once the hood is closed and it gets dirty I will forget about that pretty quick. For this price I would have no problem ordering another one. NOTE - If you are not familiar with Amazon Vine, it is basically Amazon trading products for honest reviews. NOTE that the items are NOT Free because Vine Members have to pay Income Tax on the value of the item, so the product is discounted but definitely not free, more like 1/3 to 1/2 price. As such, I don't order things that I don't NEED and USE!!! This is an important distinction because it should give you more faith that my reviews are not some fake nonsense boilerplate... I USE WHAT I ORDER, and I don't hold back if something is junk because I still had to pay for it... and this program actually bumped me up to a higher tax bracket in 2025, so it definitely wasn't free!

### ⭐⭐⭐⭐⭐ Reducer’s
*by O***. on 28 April 2026*

Fit perfect

### ⭐⭐⭐⭐⭐ For the money, it is good... Read for more...
*by B***S on 6 June 2026*

This review is for the ID 45 Degree Elbow silionce Coupler Reinforced Hose,4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic (mm) (3.5"-4"), which was selling for $22 at the time of this review - SEE MY NOTE at the end of this review. I am running this on a turbo big block at 15 psi ànd it is holding perfectly. Good quality for the price. I would prefer it had a less glossy finish but it works great and seems well made for an elbow at this price. NOTE - If you are not familiar with Amazon Vine, it is basically Amazon trading products for honest reviews. NOTE that the items are NOT Free because Vine Members have to pay Income Tax on the value of the item, so the product is discounted but definitely not free, more like 1/3 to 1/2 price. As such, I don't order things that I don't NEED and USE!!! This is an important distinction because it should give you more faith that my reviews are not some fake nonsense boilerplate... I USE WHAT I ORDER, and I don't hold back if something is junk because I still had to pay for it... and this program actually bumped me up to a higher tax bracket in 2025, so it definitely wasn't free!

## Frequently Bought Together

- OHOB-COOL 3.5 to 4 inch Silicone Reducer Coupler Hose,ID 3.5 to 4 (89-102mm),4-Ply Turbo/Intercooler/Intake Piping Industrial Hydraulic
- QWORK 1.75" T-Bolt Hose Clamp Stainless Steel, Working Range 51mm - 57mm for 1.75" Hose ID, Turbo Intake Intercooler Hose Clamp, 4 Pack

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-05*