#12 Auto-Fit Str Hose End

The EARLS #12 Auto-Fit Straight Hose End (MPN: 300112ERL) is a precision-engineered hydraulic and fuel line fitting designed for high-performance automotive and motorsports applications. This 12 AN straight hose end adapter connects 12 AN hose to 12 AN female ports with automatic alignment capability, eliminating the need for manual thread adjustment during installation. Constructed from aluminum with durable blue and red anodized finish, the Auto-Fit design reduces assembly time while maintaining secure, leak-free connections critical to systems operating under sustained pressure.

The straight configuration provides direct flow continuity without directional bends, making it ideal for applications where space constraints or existing port orientation demand inline connectivity. The 12 AN size—equivalent to -12 JIC or 3/4-inch nominal—handles substantial flow rates and pressure requirements found in fuel injection systems, turbo lines, transmission coolers, and brake system upgrades on race cars and performance vehicles. The anodized aluminum construction balances weight savings with corrosion resistance, particularly important in salt-air environments or high-humidity storage conditions. The Auto-Fit mechanism self-centers during connection, reducing cross-threading risk and ensuring consistent torque application across multiple fittings on complex line assemblies.

This fitting serves engine builders, transmission specialists, and motorsports technicians assembling or upgrading fuel, coolant, and brake systems on track-focused and street performance vehicles. It is equally suited for industrial hydraulic applications, off-road equipment, and marine systems where reliable, quick-assembly connections are non-negotiable. EARLS fittings are recognized in the automotive aftermarket for consistent quality and pressure rating compliance. A single hose end is provided; assembly requires matching hose with compatible 12 AN crimped construction and properly torqued installation into the female port.