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SKU: 19744 | UPC: 690092178703
Vibrant 4 Ply Reducer Coupling 5in x 4in x 4.5in Long (BLACK) - Universal Fit
This Vibrant Performance 4-ply silicone reducer coupling steps down from 5-inch to 4-inch inner diameter over 4.5 inches for smooth airflow transitions in air intake turbo and intercooler setups. It suits custom performance builds on cars trucks and SUVs requiring durable flexible connections under boost. Reinforced construction delivers airtight performance handling extreme heat and pressure.
Key Features
- 4-Ply Silicone Reinforcement: Built with polyester fabric layers for 100 PSI service pressure and over 200 PSI burst strength in dry applications
- Precise Dimensions: 5.00in large ID to 4.00in small ID x 4.50in length enables seamless pipe transitions without restrictions
- High Temperature Rating: Endures -65°F to 500°F for turbocharged and supercharged systems
- Black Silicone Finish: Abrasion-resistant exterior maintains shape and appearance in engine bays
- Universal Compatibility: Ideal for air intake systems silicone hoses and high-flow plumbing
Product Notes
- Use in dry air applications only avoid oil fuel or coolant contact
- Pair with Vibrant silicone hose clamps sizes 76mm-127mm for secure fit
- Ships flat compresses for storage expands with clamps
Installation Notes
- Professional installation recommended.
- Lubricate with silicone spray before clamping to ease assembly
- Requires T-bolt or spring clamps rated for boost pressure torque to 5-7 ft-lbs
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Performance Vehicles | Turbo Intercooler Intake Builds |
Why Choose Vibrant Performance?
- Earned trust of industry professionals worldwide
- Manufactured to highest quality and reliability standards
- Complete range serves all performance applications
Frequently Asked Questions
-
Q: Will this coupling work in my custom turbo intake?
A: Yes universal design fits 5in to 4in piping in turbo intercooler and intake systems verify hose diameters match -
Q: What material and reinforcement does it use?
A: High-quality black silicone reinforced with 4 plies of polyester fabric rated to 500°F and 100 PSI continuous -
Q: What is the warranty and install tip?
A: Limited lifetime warranty on manufacturing defects install with proper clamps and avoid petroleum products for longevity
Shipping & Handling
- Method: UPS Ground or FedEx
- Availability: In stock - ships same or next business day
- Packaging: Protective poly bag inside cardboard shipper 6in x 6in x 2in
- Weight: 0.4 lbs
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