Description
The Mishimoto DuraCore™ 45-Degree Silicone Intercooler Boot (MMDCC-40A4BK) is a black, 45-degree angle coupler built from five layers of silicone with heat-resistant embedded fibers and Mishimoto’s proprietary DuraCore synthetic inner lining. Sized with a 4.43-inch outer diameter, a 4.2-inch end outside diameter, and an 8.15-inch overall length, this boot is engineered to be the strongest link when you’re fabricating a custom intercooler piping kit and need a defined 45-degree bend that won’t kink or restrict flow.
Standard silicone couplers can become the weak point in a high-boost air intake system, but the DuraCore synthetic layer that lines the inside of this boot delivers superior resistance to heat, pressure, fuel, and oil compared to standard silicone alone. That extra layer of protection helps extend boot life by preventing leaks and blowouts under high-boost conditions, while the five-layer silicone construction with embedded fibers keeps the coupler structurally sound as it routes charge air through tight engine bay space. This particular boot is also coolant compatible, adding versatility for builders integrating it into a broader cooling or piping circuit.
Vehicle Applications
This DuraCore 45-degree silicone intercooler boot is a universal fabrication component rather than a vehicle-specific, direct-fit part. Mishimoto designed it for builders who are fabricating or upgrading a custom intercooler piping kit on a truck build, giving fabricators the exact angle, diameter, and material makeup needed to complete a run without relying on a mismatched or off-the-shelf coupler. Because it’s sold as an individual coupler rather than a full kit, it’s intended to be paired with the other pipes, boots, and clamps your specific layout requires.
Features
- Available across the DuraCore line in straight, straight hump, transition, 45-degree, and 90-degree configurations, with sizing from 3″ to 4″ to match custom piping kit requirements
- DuraCore synthetic inner layer resists heat, pressure, fuel, and oil better than standard silicone alone, helping keep builds leak-free and blowout-proof under high boost
- Five layers of silicone reinforced with heat-resistant embedded fibers for structural integrity
- Reinforcing rings add structural integrity to keep connections secure under pressure, where applicable
- Coolant compatible construction
- Includes (1) coupler and is backed by the Mishimoto Lifetime Warranty
- Hose clamps are not included; recommended clamps are 2x MMCLAMP-CTWG-117 Constant Tension Worm-Gear clamps
Specifications
- Brand: Mishimoto
- Part Number: MMDCC-40A4BK
- Material: Silicone with DuraCore Technology
- Color: Black
- Shape/Configuration: 45-Degree Angle Intercooler Boot
- Coupler Style: 45 degree
- Outer Diameter: 4.43 in
- End 1 Outside Diameter: 4.2 in
- Overall Length: 8.15 in
- Maximum Temperature Rating: 347°F
- Coolant Compatible: Yes
- Hose Clamps Included: No
- Includes: (1) Coupler; Mishimoto Lifetime Warranty
- Recommended Clamps: 2x MMCLAMP-CTWG-117 Constant Tension Worm-Gear clamps
Frequently Asked Questions
What is DuraCore technology?
DuraCore is the synthetic material that makes up the innermost layer of every Mishimoto silicone boot. Compared to standard silicone, it delivers superior resistance to heat, pressure, fuel, and oil, which helps extend boot life by preventing leaks and blowouts under high-boost conditions.
Does the MMDCC-40A4BK include hose clamps?
No, hose clamps are not included. Mishimoto recommends using 2x MMCLAMP-CTWG-117 Constant Tension Worm-Gear clamps with this boot.
What is the maximum temperature rating of this intercooler boot?
This boot has a maximum temperature rating of 347°F.
Is this intercooler boot coolant compatible?
Yes, this boot is coolant compatible.
What are the dimensions and shape of this boot?
This is a 45-degree angle configuration boot with an outer diameter of 4.43 inches, an end outside diameter of 4.2 inches, and an overall length of 8.15 inches.
What is included with the MMDCC-40A4BK and is it warrantied?
It includes (1) coupler and is backed by the Mishimoto Lifetime Warranty.
âš WARNING (California Proposition 65): This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
