Tectran HK400 Constant Torque Hose Clamp - 3-1/4 to 4-1/8

The Tectran HK400 is a heavy-duty constant torque hose clamp designed for demanding commercial truck, trailer, and bus applications. This professional-grade clamp features a clamping range of 3-1/4" to 4-1/8" with a 5/8" stainless steel band width, providing secure and reliable hose connections in high-vibration environments.

Key Features:

• Constant torque design with Belleville spring mechanism maintains consistent clamping pressure
• Automatically expands and contracts with temperature changes to prevent cold flow leaks
• Stainless steel construction for superior corrosion resistance and durability
• 90 in-lb high torque rating for secure heavy-duty applications
• 5/8" band width provides optimal gripping strength
• SAE J1508 Type SLHD compliant (SAE Size 412)

This constant tension clamp eliminates common leakage issues caused by thermal expansion and contraction of hoses and fittings. The spring-loaded design compensates for hose material compression over time, ensuring a long-lasting, leak-free seal. Ideal for air brake systems, coolant lines, and other critical fluid connections in heavy-duty transportation applications.

Cross References: Automann 561.25400, Velvac 022440, Breeze CT400LSS, Donaldson P532927, Gates 32640, Caterpillar 8T-4985