Material Silicone DuraCore™
Exterior Material Silicone
Ext. Material Temp. Rating 428°F
Int. Layer Temp. Rating 572°F
(2) Silicone Boots with DuraCore™ Technology
(4) Constant Tension T-Bolt Clamps
Note This boot kit fits hot-side (passenger side) only.
Installation Torque Specs
27 in-lbs (3N*M) recommended for all t-bolt and constant tension t-bolt clamps. These clamps have an operating range of 18-35 in-lbs (2-4N*M). Do not exceed the maximum torque rating of 35 in-lbs (4N*M).
Factory Part Number
Boot 1: 6C3Z-6C640-B
Boot 2: 6C3Z-6C640-A
Interior Layer DuraCore™
Interior Material Heat-Resistant Embedded Fibers
2003-2007 Ford F250 w/ 6.0L Powerstroke
2003-2007 Ford F350 w/ 6.0L Powerstroke
2003-2007 Ford F450 w/ 6.0L Powerstroke
2003-2007 Ford F550 w/ 6.0L Powerstroke
Outer Diameter Boot 1: 3.40", 3.65" Boot 2: 2.85", 2.90"
Max Temp 428°F
Inner Diameter Boot 1: 3.00", 3.25" Boot 2: 2.45", 2.50"
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. This effectively increases the life of our boots by preventing leaks and blowouts. To add even more reliability this kit includes Mishimoto 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.