Fire sleeve 12AN 25mm ID 6ft Black

The Fire sleeve 12AN 25mm ID 6ft Black from REDHORSE PERFORMANCE is a thermal protection tubing designed for high-heat fuel line, brake line, and hose management in modified vehicles and performance engines. It is particularly useful for mechanics working on turbocharged, supercharged, and naturally aspirated builds, providing protection when routing fuel and fluid lines in high-temperature environments.

This sleeve features a 25mm inner diameter (12AN equivalent sizing) and extends 6 feet, allowing for flexible coverage in tight engine compartments. Constructed from woven fiberglass with a heat-resistant exterior coating, it reflects radiant energy and helps maintain internal hose integrity under high-temperature exposure. The black finish not only blends well into modern engine bays but also resists UV degradation and ozone cracking for extended service life.

Builders working on LS swaps, turbo conversions, and fuel-injected engine conversions can rely on this sleeve to help mitigate the risk of premature hose failure. The 6-foot length can be easily cut to fit specific hose routing needs, making it a versatile choice for protecting various lines, including return fuel lines and transmission cooler lines.