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🔥 Upgrade your ride with the ultimate silicone coupler – fit, strength, and heat resistance in one sleek package!
The OHOB-COOL 3.5" to 4" Reducer Silicone Coupler is a 4-ply, 5mm thick reinforced hose designed for turbo, intercooler, and intake piping applications. It withstands extreme temperatures from -76°F to 500°F and pressures up to 0.9MPa, ensuring durability and reliable performance in demanding automotive and industrial environments. With a precise fit and flexible material, it offers easy installation and a secure connection, making it a top choice for performance enthusiasts and professionals.









| ASIN | B095HNCK8N |
| Best Sellers Rank | #24,625 in Automotive ( See Top 100 in Automotive ) #40 in Automotive Replacement Engine Turbocharger Hoses & Hose Clamps |
| Brand | OHOB-COOL |
| Brand Name | OHOB-COOL |
| Color | redcuer |
| Customer Reviews | 4.6 out of 5 stars 475 Reviews |
| Item Length | 3 inches |
| Item Weight | 0.14 kg |
| Manufacturer | hengxing |
| Material | Silicone |
| Material Type | Silicone |
| Maximum Pressure | 0.9 kilopascal |
| Nominal Wall Thickness | 5 millimeters |
| Outside Diameter | 9.4 centimeters |
| UPC | 645569097735 |
| Unit Count | 1 Count |
W**E
Great coupler, great price!
Perfect fit, exact replacement for my old one. Haven't run my machine long with it yet, but it holds up under supercharger pressure and heat on my Waverunner (with aftermarket intercooler installed). Installation was easy, and the material stretches just enough to make the perfect connection.
F**.
Great fit for aftermarket charge pipe on n55 bmw
Worked perfect for my charge pipe install on my bmw x5 with a n55 engine
N**K
E46 330i
Exactly what I needed to adapt e46 330 MAF sensor to SLG m50 manifold intake boot. Perfect size, decent price, easy install, holding up good for the past year.
H**R
We’ll build
Works exactly as I needed, well build and should do the trick for what I need! Very happy with this purchase.
J**Y
Worked well enough
Large side is slightly bigger than 2" but did the job with a clamp, no leaks.
O**.
Reducer’s
Fit perfect
A**R
Good quality
Exactly what I needed for my intake tube to connect to MAF housing. Quality seems great for the price.
S**S
Fits perfectly
Now I am able to use new 70mm throttle body and Cai
J**H
Fits how it should
Fits how it should nice and flexible good quality all black with no ugly logos on it
M**E
Hose transition silicone block as ordered
Very nice, good fit as ordered.
D**S
Très bonne qualité
Bonne grandeur fait très bien pour ce don j en avais besoin !!
C**.
?
Worked great on my 12 valve
S**E
Works on a Cummins
Used on Cummins intercooler air intake with up to 30 lbs/in of vacuum....and doesn't collapse. So far ao good
Trustpilot
1 month ago
5 days ago