ACDelco 85123397 EVAP Emission Vapor Canister Assembly

The ACDelco 85123397 EVAP Emission Canister Assembly is a genuine GM OEM component designed to capture and store fuel vapors as part of your vehicle's evaporative emission control system. This canister assembly prevents harmful gasoline fumes from escaping into the atmosphere, reducing air pollution while improving environmental compliance.

Key Features:

• Genuine ACDelco GM OEM quality and fit
• Plastic housing filled with activated charcoal to absorb and store fuel vapors
• Works with the purge valve to release stored vapors into the engine for combustion
• Helps maintain proper fuel system pressure and prevents fuel odors
• Essential for passing emissions tests and maintaining check engine light-free operation
• Replaces GM part numbers 84403786 and 84823733

This vapor canister is a critical component of the EVAP system that captures fuel vapors from the fuel tank and stores them until the engine is running. When conditions are right, the purge valve opens and allows these trapped vapors to be drawn into the intake manifold where they are burned along with the normal air-fuel mixture. A faulty canister can trigger check engine lights, cause fuel odors, and result in failed emissions inspections.