Mishimoto Ford 6.0L Powerstroke Factory-Fit Cold-Side Boot Kit, 2003–2004 View larger

Mishimoto Ford 6.0L Powerstroke Factory-Fit Cold-Side Boot Kit, 2003–2004


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Mishimoto Ford 6.0L Powerstroke Factory-Fit Cold-Side Boot Kit, 2003–2004 

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  • 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
  • Includes high-quality constant tension T-bolt clamps for accurate and consistent holding power
  • Mishimoto Lifetime Warranty

Mishimoto, the world leader in performance cooling products, is proud to introduce our new line of Ford Powerstroke Factory-Fit Boot Kits. These five-ply silicone boots a...
5 Layers of Heat-Resistant Embedded Fibers




Boot 1: 3.00”, 3.00”
Boot 2: 3.00”, 3.00”

Boot 1: 3.40”, 3.40”
Boot 2: 3.40”, 3.40”

Will fit 2005-2007 trucks which have converted the drivers’ side metal pipe P/N 6C3Z-6C640-AA.

03-04 Ford F-250 w/ 6.0L Powerstroke
03-04 Ford F-350 w/ 6.0L Powerstroke
03-04 Ford F-450 w/ 6.0L Powerstroke
03-04 Ford F-550 w/ 6.0L Powerstroke

(2) Silicone Boots with DuraCore™ Technology
(4) Constant Tension T-Bolt Clamps
Mishimoto Lifetime Warranty

Pipe (with boots): 6C3Z-6C640-AA
Boot 1: 3C34-6C640-CA
Boot 2: 3C34-6C640-DA
Mishimoto is proud to release a direct-fit silicone boot kit with DuraCore™ technology designed specifically for the 6.0L Ford Powerstroke. Mishimoto DuraCore™ technology is the synthetic material that comprises the innermost layer of all Mishimoto silicone diesel boots. Compared to normal silicone, DuraCore™ provides superior resistance to heat, pressure, fuel, and oil, which effectively increases the life of our boots by preventing leaks and blowouts. To add even more reliability, this kit includes Mishimoto’s Constant-Tension T-bolt Clamps for accurate and consistent holding power. This boot kit is precision engineered for a flawless fit on your Powerstroke and will provide years of service. Included with this boot kit is the signature Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship.

Mishimoto Performance (MP), warrants all of its products under its 'no questions asked' limited lifetime warranty policy. Regardless of the defect in product, Mishimoto will replace the original product. Warranty claims must be accompanied by the original sales receipt from an authorized dealer. 

A trained professional should install all MP products. Any issues with compatibility or installation should be addressed before attempting to install the product. 

The purchaser's remedy for breach of this limited warranty, exclusive of all other remedies provided by law, is expressly limited to repair or replacement of any part or parts. All products returned for warranty consideration must be returned to MP with all transportation expenses prepaid.

MP shall not be responsible for damages to its products or injury to persons using the products in any manner that would constitute improper operation, including but not limited to: incorrect opening of radiator pressure caps, burst hoses, unintended application or usage not intended by MP, negligence, improper installation, or any other use that may cause damages or injury. MP shall not be responsible for injury or harm to persons or property when caused by persons or vehicles using its products. 


Mishimoto, under its no questions asked warranty policy, will provide a warranty for all claims including vehicles involved in accidents. Warranty claims must include pictures of the accident and an official police report, and must be within three months of the accident. 


All Mishimoto products are engineered to fit with OEM applications, as well as other Mishimoto products.

Mishimoto will not be held responsible for fitment issues caused by attempted installation of additional aftermarket parts. This includes, but is not limited to, performance parts and any other non-OEM replacement parts. Fitment with different brands cannot be guaranteed.

Furthermore, Mishimoto will not be held responsible for fitment issues caused by an accident. Many times, clearances needed for installation are very strict. If a vehicle has been involved in a front-end accident, available space for a product such as a thicker aluminum radiator may be compromised.