#4 St Hose End

The #4 St Hose End from EARLS is a vital component for high-performance fuel, coolant, and hydraulic line assemblies in modern engine builds and custom automotive systems. This hose end is essential for mechanics working on turbocharged engines and precision fuel delivery setups, ensuring leak-free connections where pressure and reliability are critical.

Engineered with precision, this hose end is constructed from high-quality materials to withstand high-pressure applications while maintaining a compact footprint. The #4 size designation refers to the SAE hose ID standard, ensuring compatibility with industry-standard tubing and adapters used across fuel systems and coolant setups. The straight (St) configuration allows for a direct connection, making it ideal for tight engine bay layouts.

This hose end is perfect for professional shops, serious automotive enthusiasts, and race teams fabricating custom fuel systems. Its reputation for quality stems from EARLS' CNC precision manufacturing and rigorous quality control, which are critical for motorsport and street performance applications where hose failure can lead to significant risks.