Build a reliable custom intercooling or intake system with the Mishimoto DuraCore 3.5-Inch to 4-Inch Transition Silicone Intercooler Coupler, part number MMDCC-3540BK. Designed to connect piping with different tube diameters, this transition coupler provides a secure, leak-resistant seal for demanding automotive applications. Its stepped design helps simplify custom charge-pipe routing and fabrication while accommodating mismatched pipe sizes without requiring additional adapters.
Mishimoto DuraCore technology forms the innermost layer of this silicone coupler, delivering improved resistance to heat, pressure, fuel, and oil compared with standard silicone hose materials. The coupler is constructed from five layers of silicone reinforced with heat-resistant embedded fibers, helping it withstand high-boost conditions and the temperature fluctuations common in turbocharged engines. This durable construction helps reduce the risk of leaks, blowouts, and premature hose failure during spirited driving or heavy-duty use.
The MMDCC-3540BK is engineered for dependable installation in custom intercooler piping systems, including truck, performance, and motorsport builds. Its flexible silicone construction helps accommodate minor movement and vibration while maintaining a dependable connection between piping sections. Pair it with properly sized clamps for a secure installation and long-lasting performance. With Mishimoto’s broad range of DuraCore coupler configurations, you can select the shape and size needed to complete your specific piping layout.
Features:
- Transition coupler connects 3.5-inch piping to 4-inch piping
- Five-layer silicone construction with heat-resistant embedded fibers
- DuraCore inner layer resists heat, pressure, fuel, and oil
- Designed for intercooler, charge-air, cooling, and intake piping systems
- Flexible construction helps absorb movement and vibration while maintaining a secure seal
- Mishimoto part number MMDCC-3540BK
