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SKU: 19742 | UPC: 690092179236
Vibrant Universal 4 Ply Reducer Coupler 4.0in ID x 3.75in ID x 3in Long - Black
This Vibrant Performance reducer coupler steps down precisely from 4.0 inch inner diameter to 3.75 inch inner diameter over 3 inches for seamless custom air intake and turbo piping fabrication. It fits universal performance applications on modified cars trucks and imports with aftermarket intake systems. Black 4-ply silicone construction delivers reliable sealing under boost pressure and extreme heat.
Key Features
- 4-Ply Silicone Reinforcement: Handles burst pressures over 100 PSI and service temperatures from -65°F to 350°F for demanding boosted applications
- Reducer Sizing: Tapered design from 4.0in ID to 3.75in ID ensures smooth airflow transition without restrictions
- 3in Length: Provides needed flexibility for routing in compact engine bays while maintaining shape
- Oil and Chemical Resistance: Premium silicone withstands engine fluids coolants and weathering for long-term durability
- Made in USA: Precision molded for consistent fit and performance in professional race builds
Product Notes
- Hose clamps sold separately for secure attachment
- Apply silicone lubricant during installation for easier stretching over barbs
- Packaged in protective poly bag to prevent damage
Installation Notes
- Professional installation recommended.
- Use #300 series stainless steel clamps sized for 4in and 3.75in diameters
- Heat with hair dryer if needed to assist fitting over aluminum pipes
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Air Intake | Turbo Piping Builds |
Why Choose Vibrant Performance?
- Earned trust of racing professionals worldwide
- Manufactured to exacting quality standards
- Complete range for intake turbo and oil system needs
Frequently Asked Questions
-
Q: Will this fit my custom turbo intake setup?
A: Yes this universal reducer works in any fabricated piping assembly matching 4.0in to 3.75in diameters on cars trucks or imports -
Q: What material and specs does it have?
A: 4-ply reinforced black silicone rated -65°F to 350°F continuous with high burst strength for boost applications -
Q: What warranty applies and install tips?
A: Limited lifetime against defects use proper clamps and avoid over-tightening for best results
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Compact poly bag dimensions 6.1 x 5.2 x 1.6 inches
- Weight: 2.4 ounces
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View Vibrant ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
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