Sinister Diesel Hot & Cold Side Intercooler Boot Kit – 1999.5–2003 Ford 7.3L Powerstroke
Fitment Note
Fits 1999.5–2003 Ford F-250 and F-350 7.3L Powerstroke
Compatible with OEM factory charge pipes and most aftermarket intercooler pipe systems utilizing factory-style connections.
⚠️ High Demand – Restock in Progress
This item is moving fast and currently out of stock—we’re working to get more on the shelf.
Estimated ship date: 6/29/26
Orders ship first-come, first-served, and we’ll get yours out as quickly as possible.
Expedited shipping applies after shipment and does not move your order ahead in line.
We truly appreciate your patience and support—it means a lot to us.
Key Features
• Complete Hot & Cold Side Boot Kit – Includes all four intercooler boots and eight stainless steel spring clamps
• Works with OEM Charge Pipes – Direct replacement for factory intercooler boots
• 4-Ply Silicone Construction – Built to withstand heat, boost pressure, and long-term use
• 400 PSI Burst Rating – Designed for high-boost applications
• Stronger Than Factory Boots – Won't crack, split, or deteriorate like aging factory rubber boots
• Designed to Exceed OEM Specifications – Improved durability and reliability over stock components
• Stainless Steel Spring Clamps – Maintains a secure, leak-free seal under boost
• High-Temperature Silicone Material – Resists heat, oil exposure, and engine bay contaminants
• 1-Year Warranty – Backed against manufacturer defects
Product Overview
The Sinister Diesel Hot & Cold Side Intercooler Boot Kit is designed to replace worn, cracked, or leaking factory intercooler boots on your 1999.5–2003 7.3L Powerstroke.
After years of heat cycles, boost pressure, oil exposure, and engine movement, factory rubber boots often become brittle and prone to cracking or leaking. Even small boost leaks can reduce performance, increase turbo lag, and negatively affect towing performance.
Our heavy-duty 4-ply silicone boots are engineered to provide a significant durability upgrade over the factory rubber boots. The reinforced silicone construction resists heat and pressure while maintaining flexibility for long-term reliability.
The smooth interior design helps maintain consistent airflow through the charge system, while the included stainless steel spring clamps provide a secure seal capable of handling high boost levels without slipping or loosening.
Whether you're replacing aging factory boots or upgrading your charge air system during maintenance, this kit delivers the durability and reliability your 7.3L Powerstroke deserves.
Common Problems This Solves
Cracked or deteriorated factory intercooler boots
Boost leaks under load
Loss of power and throttle response
Excessive turbo lag
Boot failures caused by age, heat, and oil exposure
What’s Included
(4) 4-Ply Silicone Intercooler Boots
(8) Stainless Steel Spring Clamps
Why Choose Sinister Diesel
Since 2009, Sinister Diesel has been building parts that solve common factory weak points and improve long-term reliability. Our silicone boot kits are engineered to exceed OEM standards, providing the durability, sealing performance, and confidence diesel owners expect from their trucks.
