Description
The Mishimoto MMDCC-40SBK is a DuraCore™ Silicone Straight Intercooler Boot finished in black, built as the strongest link in a custom intercooler piping kit. This particular coupler uses a straight coupler style with an End 1 outside diameter of 4.2 inches and a listed outer diameter of 4.43 inches, giving fabricators a dependable, high-boost-rated connection point for their charge piping.
As part of Mishimoto’s air intake system and intercooler lineup, this silicone boot is manufactured from five layers of silicone reinforced with heat-resistant embedded fibers, with an innermost DuraCore™ synthetic layer engineered to resist heat, pressure, fuel, and oil far beyond standard silicone. That extra layer of protection is designed to extend boot life by preventing leaks and blowouts under high-boost conditions, while reinforcing rings — where applicable — add structural integrity to keep connections secure under pressure. Whether you’re piecing together a full custom charge-piping system or replacing a single failure-prone coupler, this DuraCore™ boot is engineered to be a component you don’t have to think twice about.
Vehicle Applications
This Mishimoto DuraCore™ boot is a universal fabrication component rather than a vehicle-specific bolt-on part — the source specifications do not tie it to a particular make, model, or model year. It’s intended for custom intercooler piping builds where you’re routing charge pipes through tight engine bays or connecting mismatched tube diameters, and it’s sized to integrate into a wider Mishimoto DuraCore™ lineup that spans straight, straight hump, transition, 45-degree, and 90-degree configurations from 3 inches to 4 inches, so fabricators can complete a piping kit to match whatever platform they’re building for.
Features
- DuraCore™ synthetic innermost layer resists heat, pressure, fuel, and oil, helping prevent leaks and blowouts under high-boost conditions
- Constructed from five layers of silicone reinforced with heat-resistant embedded fibers
- Reinforcing rings, where applicable, add structural integrity to keep connections secure under pressure
- Straight coupler style in black silicone
- Coolant compatible
- Part of a full DuraCore™ lineup available in straight, straight hump, transition, 45-degree, and 90-degree configurations from 3" to 4" for building a complete piping kit
- Includes (1) coupler; hose clamps are not included — Mishimoto recommends 2x MMCLAMP-CTWG-117 Constant Tension Worm-Gear clamps
- Backed by the Mishimoto Lifetime Warranty
Specifications
- Brand: Mishimoto
- Part Number: MMDCC-40SBK
- Product Type: Air Intake Systems
- Material: Silicone with DuraCore™ Technology
- Color: Black
- Coupler Style / Shape: Straight
- End 1 Outside Diameter: 4.2 in
- Outer Diameter: 4.43 in
- Maximum Temperature Rating: 330°F
- TechSpec Maximum Temperature: 347°F
- Hose Clamps Included: No
- Coolant Compatible: Yes
- Includes: (1) Coupler
- Recommended Clamps: 2x MMCLAMP-CTWG-117 (Constant Tension Worm-Gear)
- Warranty: Mishimoto Lifetime Warranty
- Prop 65 Warning: Cancer and Reproductive Harm – www.p65warnings.ca.gov
Frequently Asked Questions
What is DuraCore technology?
DuraCore is the synthetic material comprising the innermost layer of every Mishimoto silicone boot, delivering superior resistance to heat, pressure, fuel, and oil compared to standard silicone, which extends boot life by preventing leaks and blowouts under high-boost conditions.
Are hose clamps included with this boot?
No, hose clamps are not included. Mishimoto recommends 2x MMCLAMP-CTWG-117 Constant Tension Worm-Gear clamps for this boot.
What sizes and shapes does the DuraCore lineup offer?
The DuraCore lineup is available in straight, straight hump, transition, 45-degree, and 90-degree configurations, with sizing from 3 inches to 4 inches.
Is this boot coolant compatible?
Yes, this boot is listed as coolant compatible.
What is the maximum temperature rating?
The Maximum Temperature Rating listed is 330/rMaximum Temperature Rating field: 330 degrees F, while a separate TechSpec Maximum Temperature figure lists 347 degrees F.
Does this boot come with a warranty?
Yes, it 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.
