Twist-Lok Hose #4 Black 6ft

The Twist-Lok Hose #4 Black 6ft from RUSSELL is a reinforced rubber hydraulic hose engineered for high-pressure fluid transfer in performance engines, fuel systems, and transmission lines. Designed for motorsports enthusiasts, fabricators, and automotive professionals, this hose delivers dependable containment and durability in demanding underhood environments where standard tubing cannot withstand operating pressures and temperature fluctuations.

Manufactured with reinforced rubber construction, the Twist-Lok Hose features a #4 AN (Army-Navy) fitting size, the industry standard for mid-range flow applications in fuel, coolant, and power steering circuits. The twist-lock connection system provides secure, repeatable assembly without specialized crimping equipment, allowing for quick disconnect and reconnect cycles in workshop and competition settings. At 6 feet in length, this hose offers sufficient routing flexibility for custom engine bays and complex plumbing layouts while the black exterior resists UV degradation and maintains appearance over extended service life.

This hose is ideal for street machines, race vehicles, marine engines, and industrial hydraulic systems where reliability and ease of maintenance matter. The #4 AN size accommodates flow rates typical of V8 fuel systems and moderate-duty cooling circuits, making it compatible with most carbureted and EFI setups. Installation requires only hand-tightening of twist-lock fittings; no specialized tools are needed for assembly or reconfiguration, reducing downtime during builds and repairs.