Fire Sleeve 6AN 15mm ID 3ft Black

The Fire Sleeve 6AN 15mm ID 3ft Black from REDHORSE PERFORMANCE is a essential heat protection sleeve designed for high-performance engine bays where fuel lines, brake lines, and transmission cooler hoses operate in extreme temperature zones. If you're building a modified vehicle with turbocharging, supercharging, or aggressive engine tuning, fuel line protection becomes non-negotiable—especially near exhaust manifolds, turbos, or headers where underhood temperatures regularly exceed 200°F. This 3-foot black sleeve wraps around 6AN hose to shield your fuel delivery system from radiant and direct heat damage, preventing vapor lock, line degradation, and catastrophic fuel system failure.

Constructed with woven fiberglass-based fire-resistant material, this sleeve provides reliable thermal barrier protection while remaining flexible enough for tight engine compartment routing. The 15mm inner diameter (6AN specification) accommodates standard -6AN braided hose without binding or internal restriction, and the 3-foot length covers critical run segments where heat exposure peaks. REDHORSE PERFORMANCE's fire sleeve maintains structural integrity across repeated thermal cycles, resisting cracking and deterioration that lesser sleeves suffer after years of temperature fluctuation. The black outer finish offers both heat absorption and professional appearance, blending seamlessly into modern engine bay builds while delivering measurable protection against fuel system degradation and safety hazards.

Street performance enthusiasts, track builders, and LS-swap specialists rely on fuel line sleeves to preserve hose integrity during sustained high-load driving or extended dyno sessions. Installation is straightforward—simply slide the sleeve over your -6AN braided hose before or after final line routing, positioning it where radiant heat exposure is highest. This product is equally valuable for transmission cooler lines routed near exhaust systems and brake line protection in engine bay reorganizations. Pair it with quality braided AN hose fittings and proper fuel pressure regulation to create a robust, heat-resistant fuel delivery system capable of supporting aggressive power levels without compromise.