
Upgrade Your 2003-2004 Ford 6.0L Powerstroke with the Mishimoto Cold-Side Upper Boot
Replace your brittle and aging factory boot with the Mishimoto MMBK-F2D-03CU Cold-Side Upper Boot, engineered for superior performance and durability.
Experience the Mishimoto Difference:
- Unmatched Durability: Constructed with Mishimoto DuraCore technology, a high-performance synthetic material that resists heat, pressure, fuel, and oil, ensuring long-lasting performance and preventing leaks.
- Perfect Fit: Precision-engineered for a direct fit on your 2003-2004 Ford 6.0L Powerstroke, ensuring a hassle-free installation.
- Secure Installation: Includes Mishimoto constant tension T-bolt clamps for a secure and reliable connection.
- Mishimoto Lifetime Warranty: Provides peace of mind with long-term coverage.
Specifications:
- ID: 3.00"
- OD: 3.40"
- Material: Silicone DuraCore
- Replaces Factory Part# 6C3Z-6C640-BA
Application Notes:
- 2003-2004: Cold side, upper boot.
- 2005-2007: Can be used as a replacement boot when the intercooler pipe is upgraded to the Mishimoto MMICP-F2D-03C.
Warranty:
Limited Lifetime

Upgrade Your 2003-2004 Ford 6.0L Powerstroke with the Mishimoto Cold-Side Upper Boot
Replace your brittle and aging factory boot with the Mishimoto MMBK-F2D-03CU Cold-Side Upper Boot, engineered for superior performance and durability.
Experience the Mishimoto Difference:
Unmatched Durability: Constructed with Mishimoto DuraCore technology, a high-performance synthetic material that resists heat, pressure, fuel, and oil, ensuring long-lasting performance and preventing leaks.
Perfect Fit: Precision-engineered for a direct fit on your 2003-2004 Ford 6.0L Powerstroke, ensuring a hassle-free installation.
Secure Installation: Includes Mishimoto constant tension T-bolt clamps for a secure and reliable connection.
Mishimoto Lifetime Warranty: Provides peace of mind with long-term coverage.
Specifications:
ID: 3.00"
OD: 3.40"
Material: Silicone DuraCore
Replaces Factory Part# 6C3Z-6C640-BA
Application Notes:
2003-2004: Cold side, upper boot.
Upgrade Your 2003-2004 Ford 6.0L Powerstroke with the Mishimoto Cold-Side Upper Boot
Replace your brittle and aging factory boot with the Mishimoto MMBK-F2D-03CU Cold-Side Upper Boot, engineered for superior performance and durability.
Experience the Mishimoto Difference:
- Unmatched Durability: Constructed with Mishimoto DuraCore technology, a high-performance synthetic material that resists heat, pressure, fuel, and oil, ensuring long-lasting performance and preventing leaks.
- Perfect Fit: Precision-engineered for a direct fit on your 2003-2004 Ford 6.0L Powerstroke, ensuring a hassle-free installation.
- Secure Installation: Includes Mishimoto constant tension T-bolt clamps for a secure and reliable connection.
- Mishimoto Lifetime Warranty: Provides peace of mind with long-term coverage.
Specifications:
- ID: 3.00"
- OD: 3.40"
- Material: Silicone DuraCore
- Replaces Factory Part# 6C3Z-6C640-BA
Application Notes:
- 2003-2004: Cold side, upper boot.
- 2005-2007: Can be used as a replacement boot when the intercooler pipe is upgraded to the Mishimoto MMICP-F2D-03C.
Warranty:
Limited Lifetime