Thermo Flex Heat Shield 1-1/4in X 36in

The Thermo Flex Heat Shield 1-1/4in X 36in is a professional-grade thermal protection sleeve designed for high-temperature engine and exhaust applications. Built by THERMO-TEC, this heat shield protects critical fuel lines, hydraulic hoses, wiring harnesses, and other components from dangerous radiant heat in automotive, powersports, and industrial environments. Whether you're working on engine bay heat management, protecting sensors and fuel systems, or reducing underhood temperatures, this aluminized fiberglass sleeve delivers reliable thermal barrier protection in a compact 3-foot length.

Constructed from aluminized fiberglass with a reflective silver exterior finish, the Thermo Flex Heat Shield provides superior heat rejection through its multi-layer design. The 1-1/4 inch inner diameter accommodates standard fuel hoses, brake lines, and wire bundles, while the aluminized facing reflects radiant heat away from sensitive components rather than absorbing it. This construction method reduces surface temperature dramatically compared to unprotected hoses and wires, extending component lifespan and preventing heat-related failures. The flexible, lightweight construction allows easy installation around bends and irregular engine geometry without requiring special tools or modifications.

This heat shield is ideal for drag racing, high-performance street builds, marine engine installations, and any application where underhood temperatures exceed safe limits for standard hoses and wiring. The 36-inch length provides sufficient coverage for most fuel system runs, sensor circuits, and brake line protection in compact engine bays. Installation is straightforward—simply slide the sleeve over your hose or wire bundle and secure with adhesive-backed wrap or mechanical fasteners as needed. Compatible with most automotive, motorcycle, ATV, and small-engine applications, the Thermo Flex Heat Shield is an essential upgrade for builders prioritizing component longevity and heat management.