Vibrant Performance CAC Transition Hose Coupler, Hose ID - 4.00in x 3.00in, Silicone Intake/Boost/Cooling Plumbing - Part 11866

Vibrant Performance part 11866 is the CAC Transition Hose Coupler, Hose ID - 4.00in x 3.00in. This silicone-system component is intended for custom intake, charge-air, coolant, heater or general engine-bay plumbing where its listed inside diameter, length, bend and connection style match the application. Confirm ID, length, bend angle, color and adjoining tube or fitting size where listed. This is a component-level product, so do not assume direct vehicle-specific fitment unless the source description explicitly names a vehicle, engine, turbo or application. Vibrant lists a 1-year warranty for this part. A practical choice for custom performance builds, motorsport projects, fabrication, repair work or replacement when the stated dimensions and connections match the system.