Restore your LS engine's crankcase ventilation system with the Genuine GM 12597774 PCV Hose — the exact OEM replacement for 2009–2014 LS-based truck and SUV intake manifolds. Designed for 4.8L, 5.3L, 6.0L, and 6.2L engines, this hose maintains factory-level fit, function, and reliability for proper crankcase pressure control and optimal engine performance. Built to GM's strict OEM standards, the 12597774 PCV tube connects the valve cover to the intake manifold, ensuring efficient vapor management and preventing oil contamination in the intake system. It's also a required component for NNBS (New New Body Style) intake manifold swaps on earlier 1999–2006 LS engines. Whether you're replacing a cracked, missing, or damaged hose, or completing a manifold upgrade, this Genuine GM PCV hose guarantees the perfect fit and long-lasting durability expected from original GM components.