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ID 3.5inch to 4inch Straight Reducer Coupler Silicone Hose,4-Ply

  • Based on 408 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, Oct 21
Order within 17 hours and 30 minutes
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Size: 3.5"-4"


Features

  • Coupler Size: 3.5 to 4 inches(89mm to 102mm),Made of High Temp Reinforced Pure Silicone
  • 4-Ply Reinforced High Temperature Silicone Coupler and The hose material is high quality silicone, many color and size to choose
  • Min temperature: -60 C/-140 F. Max temperature: 230 C/428 F. Bursting pressure: 2MPA.Length 3" (76mm), Thickness: 5mm
  • Includes 2pcs Stainless Steel T-bolt clamps
  • Perfect for air intake, intercooler piping and other turbo applications.

Description

Taukealugs designs and provides top-quality silicone hose including 90 degree hose,hose reducer,straight coupler and 45 degree hoses at reasonable prices. Universal Application for connecting turbo piping or intake pipingthrough quality products and education. We've got you covered on your DIY project. Made with high-grade 4-Ply silicone and a dual layer that consists of heat resistant fibers Increased pressure tolerance, resistance to UV, water, oil/fuel, heat reductions Hoses are constructed with high-strength silicone compounds and fabrics meant to outlast stock hoses Perfect for air intake, intercooler piping and other turbo applications. 3in 90 Deg Silicone Hose 4in 90 Deg Silicone Hose 3in silicone hose 2 to 2 1/2in hose reducer 2 1/2 to 3in hose reducer 3 to 3.5 silicone reducer 3 3/4 to 4 hose reducer

Brand: Taukealugs


Color: Straight


Product Dimensions: 3"L x 0.2"W


Item Weight: 0.37 kg


Maximum Pressure: 2000000 pascal


Nominal Wall Thickness: 5 millimeters


Item Length: 3 inches


Manufacturer: Taukealugs


Number of Packs: 1


Item Highlight: 2 PCS Stainless Steel T-Bolt Clamp,4-Ply 5mm wall thickness,for Turbo,Intercooler,Intake Piping Adapter See more


Item Dimensions L x W: 3"L x 0.2"W


Item Weight: 0.37 kg


Nominal Wall Thickness: 5 millimeters


Item Length: 3 inches


Color: Straight


Maximum Pressure: 2000000 pascal


Brand Name: Taukealugs


Manufacturer: Taukealugs


Unit Count: 1 Count


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Oct 21

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Great Quality and Easy Installation
Size: 3"-3.5"
I used this straight reducer silicone coupler on my 2015 Silverado, and it worked out perfectly with the aftermarket cold air intake. The ease of installation was great, the hose slid on cleanly, and the included T-bolt clamps tightened down without any hassle. The build quality feels solid, the 4-ply silicone has good rigidity without being tough to work with, and the durability seems reliable for long-term use under the hood. For the price, the value for money is definitely there. I went with the black outside and red inside option, you can’t really see the red once it’s installed, just a slight ring of color, but it actually adds a clean, subtle pop in an otherwise all-black engine bay. Overall, a well-made coupler that fits right, installs easy, and looks good under the hood. ... show more
Reviewed in the United States on December 5, 2025 by pawjae

  • High quality adaper. Works perfect for Silverado cold air intake install.
Size: 3.75"-4"
This is great for fitting the MAF on your Silverado to a cold air intake. Most cold air intakes are 4” and the Silverado MAF is 3 3/4”. This works perfect. Don’t use one of those sleeve adapters- just get this. T-clamps are a nice touch also. Quality item.
Reviewed in the United States on March 18, 2026 by LAUREN

  • 3.75"-4" or 92mm to 100mm
Size: 3.75"-4"
Picked this up to mate a 92mm throttle body to a 100mm intake and it worked perfectly. A 100mm coupler could work, but would flare out behind the clamp on the 92mm side, and my OCD just wouldn't allow that. This looks factory. It's a really nice tight fit on both ends without being a complete strugglefest trying to get it on. The clamps are a'ight, and will work fine for a NA application, would probably even be ok under boost because of how well the coupler fits. Mine appeared to have already been tried on by someone, but zero damage. Overall I'm really pleased with this purchase and I would recommend, especially if you have the same sort of application. ... show more
Reviewed in the United States on June 19, 2024 by jeffrey d heller

  • High quality item, was exactly as described
Size: 2"-2.5"
High quality product, no defects of any kind, and item was exactly as described. I will definitely keep this company on my short list for items of this type.
Reviewed in the United States on August 6, 2026 by Paul G. Campbell

  • M make sure you measure both ends
Size: 1.75" -2.5"
It worked out just the way we planned.Thank you for having the right tool to do the job
Reviewed in the United States on September 26, 2026 by Richard Oliver

  • Easy peasy!
Size: 4"-4.5"
Holds well. Fitment accurate. Fast shipping.
Reviewed in the United States on March 16, 2026 by Kevin S.

  • Works great
Size: 3"-3.5"
Works great
Reviewed in the United States on September 19, 2026 by ron

  • looks good
Size: 3.5"-4"
fit like a glove
Reviewed in the United States on November 21, 2023 by gilberto rangel

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