Vibrant Performance 19743 Straight Silicone Reducer Coupler, 4.5-Inch to 4-Inch

The Vibrant Performance 19743 Straight Silicone Reducer Coupler provides a secure transition between tubing with different inside diameters. Designed with a 4.5-inch inlet and 4-inch outlet, this reducer coupler is suitable for custom intake, intercooler, turbocharger, and other high-performance automotive tubing applications requiring a reliable step-down connection.
Constructed from durable black silicone, the Vibrant Performance 19743 features a thick-wall design for dependable performance in demanding engine-bay environments. Its straight configuration supports clean, direct routing while helping maintain a consistent connection between compatible tubing sections. The coupler is supplied as a single piece and is intended for installation with appropriately sized clamps, sold separately.
The Vibrant Performance 19743 is a practical solution for fabricating or repairing custom air and fluid piping systems where a 4.5-inch tube must connect to a 4-inch tube. Its professional-grade construction, reducer profile, and flexible silicone material make it well suited for performance vehicle builds, replacement installations, and custom fabrication projects. Verify tubing inside diameters and clamp compatibility before installation.

Features:

• Application: Connects 4.5-inch inside diameter tubing to 4-inch inside diameter tubing

• Design: Straight reducer coupler for direct tubing transitions

• Material: Durable silicone construction

• Wall Construction: Thick-wall design for dependable service in demanding automotive applications

• Color: Black

• Brand: Vibrant Performance

• Part Number: 19743

• Quantity: One coupler