ACDelco 12638437 Genuine GM Positive Crankcase Ventilation PCV Tube

The ACDelco 12638437 is a Genuine GM OEM positive crankcase ventilation (PCV) tube designed to maintain proper crankcase pressure and ventilation in your vehicle's engine. This tube routes blow-by gases from the crankcase back into the intake system for reburning, helping to reduce emissions and prevent pressure buildup that can damage engine seals.

Key Features:

• Genuine GM OEM part manufactured by ACDelco for guaranteed fit and quality
• Direct replacement for worn, cracked, or oil-saturated PCV tubing
• Constructed from durable materials designed to withstand engine heat and oil exposure
• Helps maintain proper engine ventilation and emissions control
• Prevents oil leaks caused by excessive crankcase pressure

Replace your PCV tube if you notice oil leaks, rough idle, or check engine lights related to the crankcase ventilation system. Using genuine GM parts ensures compatibility and long-lasting performance.