The Silicone Radiator Coolant Hose you described has impressive specifications suitable for heavy-duty use in trucks like Peterbilt and Kenworth. Here's a detailed summary of its features:

Key Features:

• Inner Diameter: 1-1/4 inches
• Length: 3-foot stick
• Construction: 4-ply reinforced for strength and durability
• Material: High-quality silicone, offering excellent resistance to wear, temperature changes, and pressure
• Temperature Range:
  • Minimum: -65°F (-54°C)
  • Maximum: 350°F (+177°C)

Applications:

• Designed for coolant systems in heavy-duty vehicles.
• Ideal for high-temperature and high-pressure environments found in large trucks and industrial equipment.
• Used in both intake and radiator applications.

Benefits:

1. Durability: 4-ply construction makes it resistant to cracking, splitting, and abrasion.
2. Flexibility: Silicone remains flexible over a wide temperature range, allowing for better fitment.
3. High-Temperature Resistance: Operates effectively under extreme heat generated by heavy-duty engines.
4. Longevity: Resistant to ozone, UV, and chemicals, providing a longer service life compared to rubber hoses.

Would you like help sourcing this hose or advice on installation and compatibility for your truck?