Heat Sheath .75in ID x 50ft

The DESIGN ENGINEERING Heat Sheath .75in ID x 50ft is a professional-grade thermal protection sleeve designed to shield hoses, wiring, and fuel lines from extreme engine heat in high-performance and custom automotive builds. Constructed from aluminum and fiberglass composite material, this 50-foot roll delivers reliable heat resistance in demanding under-hood environments where standard rubber and plastic components would degrade or fail.

The .75-inch inner diameter accommodates most hose sizes found in fuel systems, brake lines, and auxiliary cooling circuits common to modified engines and turbocharged applications. The aluminum-fiberglass construction reflects and dissipates radiant heat while maintaining flexibility for routing around tight engine bay spaces. At 2.72 lbs for the full 50-foot length, it's lightweight enough for street and track use without adding significant mass. The silver reflective finish maximizes heat rejection and provides visibility when routing lines through congested engine compartments.

This heat sleeve is essential for builders working with turbocharged or supercharged engines where underhood temperatures exceed 250°F, high-output carbureted builds with aggressive ignition timing, and custom fuel systems requiring protection from engine block and exhaust manifold proximity. It prevents premature hose failure, reduces fuel vapor issues in high-heat zones, and protects electrical harnesses from melting insulation. The 50-foot supply allows coverage of multiple lines or serves as stock for ongoing fabrication projects.

DESIGN ENGINEERING's Heat Sheath is a proven component in hot rod, street machine, and motorsports applications where durability and thermal management directly impact reliability. Whether protecting fuel delivery systems, cooling circuits, or sensor wiring, this sleeve eliminates the need for ad-hoc heat wrapping solutions and delivers consistent performance across extended driving sessions and seasonal use.