CSP SAVINGS!

CSP2026
1 4

Mishimoto MMDCC-3540BK - Duracore 3.5in to 4in Transition Coupler

Mishimoto  |  SKU: MMDCC-3540BK
$7799 $8579
PLEASE NOTE: Pictures may be representative of style, rather than the actual product. Read the description for more details.

Description

Mishimoto MMDCC-3540BK - Duracore 3.5in to 4in Transition Coupler

DuraCore(TM) Silicone Intercooler Boot. 3.5 to 4 Straight

Durable hose coupler designed to securely connect piping in cooling or intake systems. Provides a tight, leak-resistant seal with heat- and pressure-resistant construction for reliable performance and easy installation.

When you're fabricating a custom intercooling system, every component in your build needs to pull its weight. Mishimoto DuraCore(TM) Silicone Intercooler Boots are engineered to be the strongest link in your intercooler piping kit. -- Whether you're routing charge pipes around tight engine bays or connecting mismatched tube diameters, we have the sizes and configurations to match exactly what your fabrication requires. DuraCore(TM) boots are available in straight, straight hump, transition, 45-degree, and 90-degree configurations, with sizing from 3" to 4", giving you the flexibility to complete your piping kit without compromise. Whatever your layout demands, Mishimoto has every size and shape to meet your build. -- DuraCore(TM) technology is the synthetic material comprising the innermost layer of every Mishimoto silicone boot. Compared to standard silicone, DuraCore(TM) delivers superior resistance to heat, pressure, fuel, and oil, effectively extending boot life by preventing leaks and blowouts under high-boost conditions. Each boot is manufactured from five layers of silicone with heat-resistant embedded fibers, and reinforcing rings (where applicable) add structural integrity to keep connections secure under pressure. Hump-style couplers introduce additional flexibility to absorb movement and vibration without compromising the seal. -- You've put serious work into your truck build. Don't let the boot be your failure point. With DuraCore(TM) Silicone Intercooler Boots, it never will be.

  • Every configuration your custom piping kit demands is covered, with straight, straight hump, transition, 45-degree, and 90-degree options available across sizing from 3" to 4"
  • Sizing from 3" to 4" means no matter what diameter your intercooler piping calls for, there's a DuraCore(TM) boot built to fit
  • Mishimoto carries everything your intercooler build needs, from every boot size and configuration to matching clamps, all in one place
SellingPoint01: Every configuration your custom piping kit demands is covered, with straight, straight hump, transition, 45-degree, and 90-degree options available across sizing from 3" to 4"
SellingPoint02: Sizing from 3" to 4" means no matter what diameter your intercooler piping calls for, there's a DuraCore™ boot built to fit
SellingPoint03: Mishimoto carries everything your intercooler build needs, from every boot size and configuration to matching clamps, all in one place
SellingPoint04: DuraCore™ synthetic layer resists heat, pressure, fuel, and oil better than standard silicone alone, keeping your build leak-free and blowout-proof under the highest boost pressures
SellingPoint05: Five silicone layers reinforced with heat-resistant embedded fibers give every boot the structural integrity to handle whatever your build throws at it
SellingPoint06: Reinforcing rings lock connection points rigid under high boost pressure, eliminating blowouts where your piping kit is most vulnerable
SellingPoint07: Hump-style boots absorb movement and vibration across your piping kit without sacrificing a secure, leak-free seal
SellingPoint08: Mishimoto Lifetime Warranty
SellingPoint09: N/A
SellingPoint10: N/A
SellingPoint11: N/A
SellingPoint12: N/A
SellingPoint13: N/A
SellingPoint14: N/A
SellingPoint15: N/A
TechSpec Note: Recommended clamps--Constant Tension Worm-Gear: 1x MMCLAMP-CTWG-105 and 1x MMCLAMP-CTWG-117
TechSpec Includes: (1) Coupler--Mishimoto Lifetime Warranty
TechSpec Coupler Style: Transition
TechSpec Inner Diameter (in): 3.5, 4
TechSpec Outer Diameter (in): 3.93, 4.43
TechSpec Overall Length (in): 4
TechSpec Maximum Temperature (F): 347
TechSpec Material: Silicone With DuraCore Technology
Color: Black
Install Difficulty: 1
Angle: 0
Color: Black
Coolant Compatible: Yes
End 1 Inside Diameter: 3.5
End 1 Outside Diameter: 3.7
End 2 Inside Diameter: 4
End 2 Outside Diameter: 4.2
Hose Clamps Included: No
Length: 0
Material: Silicone
Maximum Pressure Rating: 0
Maximum Temperature Rating: 330
Shape: Straight Intercooler Boot

What are people saying about CSP?