-9%
Mishimoto Mishimoto Duracore 3.5in to 4in Transition Coupler
Mishimoto Mishimoto Duracore 3.5in to 4in Transition Coupler
Mishimoto Mishimoto Duracore 3.5in to 4in Transition Coupler
Click to zoom in

Mishimoto Duracore 3.5in to 4in Transition Coupler

Mishimoto
MISMMDCC-3540BK
840197726969
Silicone Couplers & Hoses
20 Units In Stock - Ships Next Business Day
$ 77.00 $ 69.95
$ 69.95

SKU: MMDCC-3540BK | UPC: 840197726969

Mishimoto Duracore 3.5in to 4in Transition Coupler

This Mishimoto transition coupler connects 3.5 inch to 4 inch tubes in custom intercooler piping kits. It fits fabrication projects on trucks and performance vehicles requiring mismatched diameters. The design prevents leaks and blowouts under high boost conditions.

Key Features

  • DuraCore Technology: Synthetic inner layer resists heat pressure fuel and oil
  • Five Layer Construction: Silicone with embedded heat resistant fibers
  • Reinforcing Rings: Add structural integrity at connections
  • Transition Design: Handles 3.5 inch to 4 inch diameter changes
  • Black Finish: Matches common engine bay aesthetics
  • Flexible Seal: Absorbs vibration while maintaining pressure

Specifications

Detail Value
Brand Mishimoto
Type Transition Coupler
Compatibility Universal custom intercooler fabrication
Material Five-layer silicone with DuraCore inner layer
Size 3.5 inch to 4 inch
Country of Origin China
Warranty Limited lifetime

Whats Included

  • One 3.5in to 4in transition coupler
  • Installation instructions

Product Notes

  • Designed for custom fabrication projects
  • Available in straight hump 45 degree and 90 degree options
  • Supports high boost applications without failure

This Part Fits

Year Range Make Model Notes
Universal Any Custom builds For intercooler piping kits

Why Choose Mishimoto?

  • Engineered for leak free high boost performance
  • Provides flexibility in tight engine bay routing
  • Extends service life compared to standard silicone
  • Available in multiple configurations and sizes

Frequently Asked Questions

  • Q: What diameters does this coupler connect?
  • A: It transitions from 3.5 inch to 4 inch tube sizes.
  • Q: Is this part vehicle specific?
  • A: No it is designed for universal custom fabrication.
  • Q: What material resists oil and fuel?
  • A: The DuraCore inner layer provides resistance to oil fuel heat and pressure.

Shipping & Handling

  • Method: Ground shipping via major carriers
  • Availability: In stock ships same or next business day
  • Packaging: Standard retail box
Read More
Read Less

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Air Intake Systems

Air Intake Systems

Air Intake Systems, Cold Air Intakes & Performance Intake Parts Shop premium air intake systems, cold air intakes, short ram intakes, air boxes, intake components, intake elbows, mass air flow sensors, scoops, snorkels, recharge kits, silicone couplers, and intake hoses at Black Ops Auto Works. This collection is built for enthusiasts looking to improve airflow, throttle response, induction sound, horsepower potential, and under-hood performance across cars, trucks, SUVs, Jeeps, muscle cars, off-road builds, and supercharged HEMI platforms. Whether you are upgrading a daily driver, Dodge Charger, Dodge Challenger, Dodge Durango, Jeep Grand Cherokee, Jeep Trackhawk, Ram TRX, Ram RHO, Toyota Tundra, Chevy Silverado, Chevrolet Camaro, Corvette, BMW, Cadillac CTS-V, Honda, Hyundai, Infiniti, or a custom performance build, our Air Intake Systems collection includes parts designed for fitment, durability, and real-world performance. Air Intake Systems from Top Brands Shop trusted air ...

View Air Intake Systems Products
Mishimoto

Mishimoto

Shop premium Mishimoto performance parts at Black Ops Auto Works, your trusted source for Mishimoto radiators, intercoolers, oil coolers, catch cans, silicone radiator hoses, thermostats, intake systems, charge pipes, exhaust tips, wheel accessories, and cooling system upgrades. Mishimoto is known for producing high-performance cooling and airflow components engineered for reliability, fitment, and real-world performance across cars, trucks, SUVs, and off-road builds. Whether you are upgrading a street car, track build, tow rig, diesel truck, Jeep, or performance daily driver, Mishimoto products help improve cooling efficiency, airflow, oil control, durability, and engine bay performance. Shop Mishimoto Cooling, Intake & Performance Parts At Black Ops Auto Works, we carry a wide selection of Mishimoto aftermarket parts for popular performance, truck, SUV, and off-road applications. Popular Mishimoto Product Categories: Radiators & Cooling Components – Performance aluminum ...

View Mishimoto Products
Silicone Couplers & Hoses

Silicone Couplers & Hoses

Shop premium silicone couplers and hoses at Black Ops Auto Works, your trusted source for silicone reducer couplers, straight hose couplers, 45 degree silicone elbows, 90 degree silicone elbows, transition elbows, hump hoses, T-hose couplers, and reinforced silicone hoses for performance, street, truck, and custom builds. Our collection is built for enthusiasts and fabricators looking to improve airflow, boost reliability, fluid transfer, heat resistance, and long-term durability. Whether you are building a cold air intake, intercooler piping system, turbo setup, supercharger system, coolant hose upgrade, or custom fabrication project, we carry high-quality silicone components designed for fitment, flexibility, pressure handling, and performance. Shop Silicone Couplers, Elbows & Reinforced Hoses At Black Ops Auto Works, we offer a wide selection of silicone couplers and hoses for air intake, charge pipe, coolant, and custom plumbing applications. Popular Silicone Couplers & ...

View Silicone Couplers & Hoses Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×