Replace your cracked, worn, or leaking PCV crossover hose with the genuine GM 97357033 OE Positive Crankcase Ventilation (PCV) Crossover Hose designed for the 2004.5-2005 Chevy/GMC 6.6L Duramax LLY diesel engines. This OEM-grade hose is engineered and tested to GM’s rigorous standards, ensuring proper crankcase ventilation function and factory-fit performance.
Over time, the factory PCV hose can dry out and crack, leading to oil leaks, reduced performance, and increased emissions. Installing this genuine replacement restores proper crankcase venting and keeps your Duramax running clean and efficient.
