Mishimoto DuraCore Silicone Boot Kit – 7.3L Ford Powerstroke 1999-2003

Mishimoto MMBK-F2D-99BK DuraCore silicone boot kit with T-bolt clamps for 1999-2003 Ford 7.3L Powerstroke Super Duty. Backed by Mishimoto’s lifetime warranty.

Description

The Mishimoto MMBK-F2D-99BK is a direct-fit silicone boot kit built specifically for the 1999-2003 Ford 7.3L Powerstroke, engineered with Mishimoto’s proprietary DuraCore technology at the innermost layer of every boot. This part replaces the factory boots within the air intake system while retaining perfect factory fitment, so it bolts into place on stock or modified 7.3L trucks without modification.

Every boot in this kit is constructed with five layers of heat-resistant fiber to maximize durability and guard against blowouts, while the DuraCore interior layer provides superior resistance to heat, pressure, fuel, and oil compared to standard silicone. Because these boots are a critical link in the air intake system, keeping them free of cracks, leaks, and hardening helps preserve consistent airflow and seal integrity from the turbo to the intake tract. Mishimoto rounds out the kit with high-quality constant-tension T-bolt clamps for accurate, consistent holding power at every connection point, and the entire kit is covered by the Mishimoto lifetime warranty for long-term peace of mind.

Vehicle Applications

This boot kit is a direct fit for the 1999-2003 Ford F-250 Super Duty (Lariat, XL, and XLT), 1999-2003 Ford F-350 Super Duty (Lariat, XL, and XLT), 1999-2003 Ford F-450 Super Duty (Lariat, XL, and XLT), and 1999-2003 Ford F-550 Super Duty (Lariat, XL, and XLT). Additional specific-year coverage includes the 2003 Ford F-350 Super Duty King Ranch, the 2003 Ford F-450 Super Duty Base, and the 2001-2003 Ford F-550 Super Duty Base. On the Excursion side, this kit fits the 2000-2003 Ford Excursion Limited and XLT, along with the 2003 Ford Excursion Eddie Bauer.

Features

  • Direct fit for the 1999-2003 Ford 7.3L Powerstroke
  • Five layers of heat-resistant fiber for maximum durability and blowout prevention
  • 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
  • Grade Type: Performance
  • Clamps Included: Yes
  • Universal or Specific Fit: Specific
  • Maximum Temperature Rating: 428
  • Purchase Includes: (4) Silicone Boots with DuraCore Technology, (8) Constant Tension T-Bolt Clamps, Mishimoto Lifetime Warranty

Frequently Asked Questions

What vehicles does the Mishimoto MMBK-F2D-99BK boot kit fit?

This kit is a direct fit for the 1999-2003 Ford F-250, F-350, F-450, and F-550 Super Duty (Lariat, XL, and XLT trims), the 2003 F-350 Super Duty King Ranch, the 2003 F-450 Super Duty Base, the 2001-2003 F-550 Super Duty Base, the 2000-2003 Ford Excursion Limited and XLT, and the 2003 Ford Excursion Eddie Bauer, all equipped with the 7.3L Powerstroke.

What material are the boots made from?

The boots are made from silicone with Mishimoto’s DuraCore technology forming the interior layer, which provides superior resistance to heat, pressure, fuel, and oil compared to normal silicone.

What is included in this kit?

The kit includes (4) silicone boots with DuraCore technology and (8) constant-tension T-bolt clamps, along with coverage under the Mishimoto lifetime warranty.

What color are the boots?

The boots are black.

What is the maximum temperature rating for these boots?

The boots carry a maximum temperature rating of 428.

Does this kit include a warranty?

Yes, this kit is backed by the Mishimoto lifetime warranty.

⚠ 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.