Michigan Motorsports PCV Hose | Like GM 12597774 | Fits 2009-2014 LS Truck & SUV 4.8L 5.3L 6.0L 6.2L Engines | OEM Crankcase Vent Tube for NNBS Intake Manifolds | Direct-Fit

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.

• Genuine OEM GM Replacement (12597774) – Direct-fit replacement PCV hose built to factory specifications for perfect fit and reliable performance on 2009–2014 LS-based engines.
• Maintains Proper Crankcase Ventilation – Ensures consistent vacuum and pressure balance, preventing oil buildup and promoting efficient combustion and emissions control.
• Ideal for NNBS Intake Manifold Swaps – Commonly used when installing 2009+ intake manifolds onto 1999–2006 LS engines, making it a must-have for manifold conversions.
• Durable Factory-Grade Construction – Made from high-quality molded rubber for superior heat, oil, and chemical resistance in demanding underhood environments.
• Fits 4.8L, 5.3L, 6.0L, 6.2L LS Engines – Designed for GM trucks, SUVs, and vans including Silverado, Sierra, Tahoe, Suburban, Yukon, Escalade, and Express applications.