GM GENUINE PARTS Vapor Canister 22963841 — Direct-Fit EVAP Canister for Cadillac/Chevy/GMC, OE Fit & Durability

The GM Genuine Parts 22963841 Vapor Canister is the factory-spec evaporative emissions canister designed to capture and store fuel vapors for proper recirculation in compatible GM vehicles.

This vapor canister is engineered and validated by General Motors to meet original equipment specifications for fit, durability, and functionality. It collects fuel vapors from the tank and holds them until the engine management system draws the stored vapors into the intake to be burned during normal operation. Built to the tolerances expected of OE components, the 22963841 canister is a direct-fit replacement for a range of Cadillac, Chevrolet, GMC, and Hummer models.

What does the 22963841 vapor canister do for my vehicle?

The canister is part of the evaporative emissions (EVAP) system. Its carbon-filled chamber traps gasoline vapors that would otherwise escape to the atmosphere, allowing the engine to use those vapors later and helping the emissions system operate correctly.

• Stores evaporative fuel vapors until purge cycles begin
• Prevents raw vapor release to the environment
• Works with purge valves and vent solenoids for controlled recirculation

How do I know if this canister fits my vehicle?

GM Genuine Parts 22963841 is designed as a GM-recommended replacement and fits many GM full-size SUVs and trucks from specific model years. Always verify fitment using your vehicle VIN or consult the parts catalog to confirm compatibility before purchasing.

• Common fits include Cadillac Escalade models from mid-2000s to early 2010s
• Also fits select Chevrolet Suburban, Avalanche, and Hummer H2 model years
• Compatible with certain GMC Yukon XL 5.3L and 6.2L years

Why choose the GM Genuine Parts version instead of an aftermarket canister?

GM Genuine Parts are produced or validated to the same standards as the original factory components, which helps ensure correct connections, mounting points, and long-term reliability. Choosing the OE part reduces the risk of fitment issues and supports factory-level performance of the EVAP system.

• Manufactured to GM OE specification for fit, form, and function
• Backed by the automaker’s validation and quality controls
• Designed to interface correctly with factory purge and vent components

How should I handle installation and maintenance?

Installation is typically straightforward for a qualified technician and involves detaching hoses and mounting hardware, then replacing the canister with the new OE unit. Routine checks of hoses and connectors during service will help maintain EVAP performance and prevent faults.

• Replace damaged hoses, clamps, or cracked connectors at time of installation
• Clear any EVAP fault codes after installation with an OBD-II scanner
• Inspect mounting points to ensure secure, vibration-free installation

Who is this for: Drivers and technicians who want a factory-spec evaporative emissions canister for compatible GM SUVs and trucks. If you need a direct-fit replacement to preserve original EVAP performance and reduce the chance of diagnostic trouble codes, the GM Genuine Parts 22963841 provides the OE-level fit and validation expected for routine maintenance or repair.