Mishimoto Silicone 90 Degree Reducer Coupler 2.5in To 4in

Mishimoto Silicone 90 Degree Reducer Coupler 2.5in To 4in provides a 90-degree hose transition between 2.5" and 4" lines, enabling reliable routing for coolant and air passage systems in demanding engine bay layouts.

This coupler is part of Mishimoto’s expanding line of silicone couplers and 90-degree transition pieces designed to simplify complex plumbing runs. Its design is intended specifically for use in both coolant and air passages, making it a versatile option for intercooler, intake, and cooling system modifications where a change in diameter and direction is required.

Key features and benefits

• 90-degree transition coupler — provides a compact directional change while joining different hose diameters, useful for tight packaging and optimized routing.
• Reducer design (2.5" to 4") — facilitates a step between hose sizes without additional adapters, reducing parts count and installation time.
• Part of Mishimoto’s silicone coupler range — integrates with the brand’s lineup to simplify matching components and sourcing for projects that use Mishimoto silicone plumbing.
• Suitable for coolant and air passages — specified applicability for both systems ensures suitability for plumbing coolant circuits or intake/intercooler piping where compatible.

The product is intended to make selection and installation easier by offering a dedicated 90-degree reducer option within Mishimoto’s broad coupler range.