Mishimoto MMDCC-3540BK Silicone Transition Coupler 35mm to 40mm Black

The Mishimoto MMDCC-3540BK is a high-performance silicone transition coupler designed to connect pipes of two different diameters in intercooler, intake, and boost piping systems. Stepping up from 35mm (approximately 1.375") to 40mm (approximately 1.575"), this reducer coupler provides a smooth, leak-free transition between mismatched pipe diameters.

Constructed from reinforced multi-ply silicone, this coupler delivers superior heat and pressure resistance compared to factory rubber hoses, making it an ideal upgrade for turbocharged and supercharged applications. The black finish provides a clean, stealth look under the hood.

Key Features:

• Transition/reducer design: 35mm inlet to 40mm outlet
• Premium multi-ply reinforced silicone construction
• Excellent heat resistance for high-temperature engine bay use
• Pressure-rated for forced induction (turbo and supercharger) applications
• Black colorway for a clean, understated appearance
• Compatible with standard hose clamps for a secure, leak-free seal
• Direct replacement or upgrade for OEM rubber couplers

Mishimoto silicone couplers are manufactured to strict tolerances and are a popular choice for performance builds, engine bay dress-up, and intercooler piping upgrades. Whether building a custom boost kit or replacing a deteriorating OEM hose, the MMDCC-3540BK delivers reliable performance and a professional finish.