Description
The Mishimoto MMBK-F2D-03CL is a direct-fit cold side, lower silicone boot built specifically for the 2003-2004 Ford 6.0L Powerstroke. Engineered with Mishimoto’s DuraCore technology as its innermost layer, this boot is designed to replace the factory pipe (part number 6C3Z-6C640-DA) that is prone to weakness and failure under the demands of daily towing and hauling.
As a critical link in your Powerstroke’s air intake system, this silicone boot does more than just connect components in your cold air intake path — it seals the tract that carries boosted air into the engine. Compared to standard silicone, Mishimoto’s DuraCore synthetic inner layer offers superior resistance to heat, pressure, fuel, and oil, which helps extend the service life of the boot and prevents the leaks and blowouts that plague a tired factory air intake pipe. Whether you’re maintaining an existing air intake filter setup or simply shoring up a weak point in your intake system, this boot kit is manufactured from five layers of silicone with heat-resistant embedded fibers for durability, and it ships with constant tension T-bolt clamps to keep the connection secure and consistent over time.
Vehicle Applications
This boot kit is a specific fit for the 2003-2004 Ford Excursion in Eddie Bauer, Limited, and XLT trims, plus the 2004 Excursion XLS. It also fits the 2003-2004 Ford F-250 Super Duty in Lariat, XL, and XLT trims, along with the 2004-only Harley-Davidson Edition and King Ranch trims. Coverage extends to the 2003-2004 Ford F-350 Super Duty in King Ranch, Lariat, XL, and XLT trims, and the 2004 F-350 Harley-Davidson Edition. Rounding out the fitment, the 2003-2004 Ford F-450 Super Duty (Base, Lariat, XL, and XLT) and the 2003-2004 Ford F-550 Super Duty (Base, Lariat, XL, and XLT) are all covered by this boot kit.
Features
- Direct fit for the 2003-2004 Ford 6.0L Powerstroke
- Manufactured from five layers of silicone with heat-resistant embedded fibers
- DuraCore synthetic inner layer provides superior resistance to heat, pressure, fuel, and oil
- Replaces weak factory pipe (part number 6C3Z-6C640-DA)
- Includes constant tension T-bolt clamps for accurate and consistent holding power
- Backed by the Mishimoto Lifetime Warranty
- 2005-2007 Powerstroke owners can upgrade their factory plastic pipe with the Mishimoto MMICP-F2D-03C
Specifications
- Material: Silicone with DuraCore
- Color: Black
- Clamps Included: Yes
- Universal or Specific Fit: Specific
- Grade Type: Performance
- Maximum Temperature Rating: 428
- Recommended clamp torque: 27 in-lbs (3Nm); operating range 18-35 in-lbs (2-4Nm); do not exceed 35 in-lbs (4Nm)
- Purchase Includes: Cold Side, Lower Silicone Boot with DuraCore technology, Constant-Tension T-Bolt clamps, and Mishimoto Lifetime Warranty
Frequently Asked Questions
What vehicles fit the Mishimoto MMBK-F2D-03CL boot kit?
This kit is a specific fit for the 2003-2004 Ford Excursion (Eddie Bauer, Limited, XLT, and the 2004-only XLS), the 2003-2004 Ford F-250 Super Duty (Lariat, XL, XLT, plus the 2004-only Harley-Davidson Edition and King Ranch), the 2003-2004 Ford F-350 Super Duty (King Ranch, Lariat, XL, XLT, plus the 2004-only Harley-Davidson Edition), and the 2003-2004 Ford F-450 and F-550 Super Duty (Base, Lariat, XL, XLT).
What is DuraCore technology?
DuraCore is the synthetic material that makes up the innermost layer of all Mishimoto silicone diesel boots. Compared to normal silicone, it provides superior resistance to heat, pressure, fuel, and oil, which helps extend the life of the boot by preventing leaks and blowouts.
Does this boot replace the factory pipe?
Yes, this boot kit replaces the factory pipe with part number 6C3Z-6C640-DA on the 2003-2004 Ford 6.0L Powerstroke.
What is included with this kit?
The kit includes a Cold Side, Lower Silicone Boot with DuraCore technology, Constant-Tension T-Bolt clamps, and the Mishimoto Lifetime Warranty.
What torque should the T-bolt clamps be tightened to?
A torque of 27 in-lbs (3Nm) is recommended for all T-bolt and constant tension T-bolt clamps. These clamps have an operating range of 18-35 in-lbs (2-4Nm), and the maximum torque rating of 35 in-lbs (4Nm) should not be exceeded.
Is there an option for 2005-2007 Powerstroke trucks?
Yes, owners of 2005-2007 trucks can upgrade their factory plastic pipe to the Mishimoto MMICP-F2D-03C.
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.
