Pre-Assembled Hose Hose Size -4AN

The Pre-Assembled Hose Size -4AN from VIBRANT PERFORMANCE is an essential fluid transfer component for custom automotive cooling, fuel, and hydraulic systems. Whether you're building a modified engine bay, upgrading your cooling loop, or fabricating a custom fuel delivery system, pre-assembled -4AN hose saves critical shop time by eliminating the need for field assembly and custom crimping. Mechanics and performance enthusiasts rely on this hose for applications where quick, leak-free connections are non-negotiable.

The -4AN designation refers to a 1/4-inch nominal bore diameter hose rated for high-pressure fluid transfer in automotive environments. VIBRANT PERFORMANCE manufactures this hose with factory-crimped fittings at both ends, eliminating assembly variability and ensuring consistent pressure ratings and flow characteristics across your system. The pre-assembled design meets SAE J30R9 standards and accommodates fluid temperatures and pressures typical of modern engine modifications, including turbocharged and supercharged applications where reliability under stress is critical.

This hose is ideal for radiator bypass lines, transmission cooler circuits, fuel systems, and custom coolant routing on street rods, race cars, and high-output street engines. Its compact design—measuring 7.09 inches in length and weighing only 0.25 lbs—makes it suitable for tight engine bay configurations where space is at a premium. Installation is straightforward: simply connect the pre-crimped ends to matching -4AN ports using standard automotive wrenches, then verify tight seals before pressurizing the system. Compatible with all -4AN quick-disconnect couplers and AN male/female fittings, this hose integrates seamlessly into both OEM upgrade paths and full custom hydraulic architectures.