Mishimoto DuraCore Silicone Boot Kit for 2003-2007 6.0L Powerstroke

Mishimoto MMBK-F2D-03BK DuraCore silicone boot kit replaces weak factory hot-side piping on 2003-2007 6.0L Ford Powerstroke trucks. Includes T-bolt clamps and lifetime warranty.

Description

The Mishimoto MMBK-F2D-03BK is a direct-fit silicone boot kit built with Mishimoto’s DuraCore technology specifically for the 6.0L Ford Powerstroke. This isn’t a generic hose kit — it’s engineered to replace the factory hot-side (passenger side) piping with a boot designed for long-term durability under the demanding conditions of a diesel air intake system.

At the core of this kit is DuraCore, the synthetic material that forms the innermost layer of every Mishimoto silicone diesel boot. Compared to standard silicone, DuraCore delivers superior resistance to heat, pressure, fuel, and oil, which helps prevent the leaks and blowouts that weaken factory piping over time. By replacing that weak factory piping, this boot kit is designed to improve airflow, power, and EGTs within your truck’s air intake system. To back up the boots themselves, Mishimoto includes constant-tension T-bolt clamps for accurate, consistent holding power rather than clamps that loosen with heat cycling, and the whole kit is covered by the signature Mishimoto lifetime warranty.

Vehicle Applications

This boot kit is precision engineered for a flawless, direct fit on the 6.0L Ford Powerstroke platform. It covers the 2003-2005 Ford Excursion Eddie Bauer, Limited, and XLT, along with the 2004-2005 Excursion XLS. On the Super Duty truck line, it fits the 2003-2007 Ford F-250 Lariat, XL, and XLT, as well as the 2004-2007 F-250 Harley-Davidson Edition and King Ranch. It also fits the 2003-2007 Ford F-350 King Ranch, Lariat, XL, and XLT, plus the 2004-2007 F-350 Harley-Davidson Edition. Larger chassis coverage includes the 2003-2004 Ford F-450 Base and the 2003-2007 F-450 Lariat, XL, and XLT, along with the 2003-2007 Ford F-550 Base, Lariat, XL, and XLT.

Features

  • Direct fit for the 2003-2007 6.0L Powerstroke
  • Replaces weak factory piping
  • Improves airflow, power, and EGTs
  • DuraCore technology provides superior resistance to heat, pressure, fuel, and oil
  • Includes high-quality constant-tension T-bolt clamps
  • Backed by the Mishimoto Lifetime Warranty

Specifications

  • Material: Silicone with DuraCore
  • Interior Material: DuraCore
  • Color: Black
  • Clamps Included: Yes
  • Universal or Specific Fit: Specific
  • Grade Type: Performance
  • Maximum Temperature Rating: 428°F
  • Fitment Note: Fits hot-side (passenger side) only
  • Clamp Torque Range: 18-35 in-lbs (2-4NM); do not exceed 35 in-lbs (4NM)
  • Purchase Includes: (2) Silicone Boots with DuraCore Technology, (4) Constant Tension T-Bolt Clamps, Mishimoto Lifetime Warranty

Frequently Asked Questions

What does the Mishimoto MMBK-F2D-03BK boot kit include?

The kit includes (2) silicone boots with DuraCore technology, (4) constant-tension T-bolt clamps, and the Mishimoto Lifetime Warranty.

Does this boot kit fit the hot side or cold side of the intake system?

This boot kit fits the hot-side (passenger side) only.

What is DuraCore technology?

DuraCore is the synthetic material that makes up the innermost layer of Mishimoto silicone diesel boots. Compared to normal silicone, it provides superior resistance to heat, pressure, fuel, and oil, which helps prevent leaks and blowouts.

Which vehicles does this boot kit fit?

It fits the 2003-2005 Ford Excursion Eddie Bauer, Limited, and XLT; the 2004-2005 Excursion XLS; the 2003-2007 Ford F-250 Lariat, XL, and XLT; the 2004-2007 F-250 Harley-Davidson Edition and King Ranch; the 2003-2007 F-350 King Ranch, Lariat, XL, and XLT; the 2004-2007 F-350 Harley-Davidson Edition; the 2003-2004 F-450 Base; the 2003-2007 F-450 Lariat, XL, and XLT; and the 2003-2007 F-550 Base, Lariat, XL, and XLT.

What is the torque rating for the included T-bolt clamps?

The included clamps have an operating range of 18-35 in-lbs (2-4NM). Do not exceed the maximum torque rating of 35 in-lbs (4NM).

What is the maximum temperature rating of this boot kit?

The boot kit has a maximum temperature rating of 428°F.

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.