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Mishimoto DuraCore 3.5in to 4in Transition Silicone Intercooler Coupler (MMDCC-3540BK)

$69.95 $77.00
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Mishimoto DuraCore 3.5in to 4in Transition Silicone Intercooler Coupler (MMDCC-3540BK)
$69.95 $77.00
$69.95 $77.00

The Mishimoto DuraCore 3.5" to 4" Transition Silicone Intercooler Coupler is engineered for custom intercooler piping systems that demand maximum reliability under high-boost conditions. This heavy-duty transition boot allows fabricators to securely connect 3.5-inch and 4-inch diameter charge pipes, providing a durable bridge in your induction system.

Every DuraCore™ boot features a specialized synthetic inner layer that offers superior resistance to heat, pressure, fuel, and oil compared to standard silicone. This prevents the structural degradation and leaks that typically lead to mid-race blowouts. The coupler is built from five layers of high-grade silicone with embedded heat-resistant fibers, ensuring it maintains its shape and seal in the most demanding engine bay environments.

  • DuraCore™ Technology: Synthetic inner lining resists oil and fuel degradation to prevent leaks and extend boot life.
  • 5-Ply Construction: Five layers of silicone reinforced with heat-resistant fibers for exceptional burst strength.
  • Transition Design: Seamlessly adapts 3.5" OD piping to 4" OD components.
  • High-Pressure Rated: Engineered to withstand the extreme temperatures and vibration of turbocharged and supercharged builds.
  • Inlet Diameter: 3.5 in
  • Outlet Diameter: 4.0 in
  • Material: 5-Ply Reinforced Silicone with DuraCore™ Inner Layer
  • Manufacturer Part Number: MMDCC-3540BK
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