Mishimoto MMCP-3540BK 3.5 to 4 Inch Silicone Transition Coupler Black

The Mishimoto MMCP-3540BK is a premium silicone transition coupler designed to connect 3.5-inch to 4-inch pipes or tubes in automotive cooling, intake, and turbo systems. This black reducer coupler provides a reliable, leak-free connection between mismatched diameter components.

Key Features:

• 100% high-grade silicone construction for maximum durability and flexibility
• Heat-resistant embedded reinforcement fibers prevent expansion under pressure
• Withstands high heat and pressure conditions found in performance applications
• Smooth inner surface promotes optimal airflow and fluid transfer
• Compatible with standard worm-gear or T-bolt clamps for secure installation
• Black finish resists staining and maintains clean appearance
• Backed by Mishimoto Lifetime Warranty

Ideal for custom intercooler piping, turbo setups, radiator hose upgrades, and intake manifold connections. The reinforced silicone construction provides superior performance compared to rubber couplers, resisting heat degradation, cracking, and collapse under vacuum conditions.