#4 90 Deg Push-On Hose End Black

The #4 90 Deg Push-On Hose End Black is a critical hydraulic fitting designed for high-performance fuel and coolant line connections in modified engines and racing applications. As a mechanic working on custom fuel systems, you'll recognize this as an industry-standard AN (Army-Navy) connector that eliminates the need for traditional threaded unions or hose clamps. This push-on configuration significantly reduces installation time and provides a leak-free seal that holds up under pressure fluctuations common in forced-induction builds, turbocharged engines, and high-flow cooling systems.

XRP-Xtreme Racing Products engineered this fitting with precision-machined black aluminum construction and a 90-degree elbow configuration that allows you to route hoses around tight engine bays without kinks or stress points. The push-on design uses a barbed inner diameter that grips reinforced hose securely while the 90-degree angle reduces turbulence and maintains consistent line pressure in fuel injection and cooling circuits. The compact footprint—measuring 2.7 x 1.2 x 3.65 inches—makes it ideal for crowded engine compartments where space is at a premium, such as in LS swaps, supercharger installations, or custom water cooling setups.

Builders and performance mechanics favor the #4 90 Deg Push-On Hose End for fuel system upgrades, intercooler plumbing, and radiator recirculation lines where vibration resistance and durability are non-negotiable. The black anodized finish resists corrosion and blends seamlessly with modern engine bay aesthetics while maintaining structural integrity in high-temperature environments. Verify your hose inner diameter matches #4 (approximately 1/4") before installation to ensure a secure push-on fit without requiring adhesive or additional fasteners.