Standard Ignition CP3547 Vapor Canister

Vapor Canister for GM Emission Control

Standard Ignition CP3547 is a direct-fit vapor canister for evaporative emission system service on select Chevrolet, Buick, and Cadillac vehicles. It is built for pressurized fuel systems and includes an integrated check valve with operating pressure matched to vehicle-specific requirements.

Use CP3547 when you need an OE-style replacement that helps control fuel vapor loss and restore evaporative system function on applications such as the Chevrolet Impala, Buick LaCrosse, Buick Regal, Cadillac XTS, and Cadillac CTS.

Key Features

• Direct-fit OE replacement for straightforward installation
• Integrated check valve with vehicle-specific operating pressure
• Designed for pressurized fuel systems and creep-load durability
• Black housing with filter element included
• 1 female connector, 2 male blade terminals, and 3 hose ports
• Length: 12.75 inches

Detailed Description

Standard Ignition CP3547 is a vapor canister used in the evaporative emissions system to capture and manage fuel vapors before they escape to the atmosphere. Its OE-style design supports proper fitment and service replacement on select GM platforms, including 2010-2020 Chevrolet Impala, 2010-2016 Buick LaCrosse, 2011-2017 Buick Regal, 2013-2019 Cadillac XTS, and 2014 Cadillac CTS. This part number, CP3547, is also cross-referenced in the aftermarket for the same application.

The canister’s integrated check valve and pressurized-fuel-system construction are intended to match the operating demands of the vehicle’s evaporative system. Standard Ignition CP3547 is a practical replacement when the original vapor canister is cracked, saturated, or no longer controlling vapor storage correctly.

What It Helps Fix

• Check engine light related to evaporative emissions faults
• Fuel vapor odor around the vehicle
• Failed EVAP leak or purge-related diagnostic codes
• Damaged or saturated vapor canister media
• Loss of proper fuel vapor containment in the emission control system

Installation Notes

Verify the vehicle’s emissions configuration before ordering. Some listed applications are for Federal Emissions or PZEV-equipped vehicles only, and fitment varies by year and model. Confirm connector style, hose port layout, and canister length against the original unit before installation. This part fits 2016-2020 Chevrolet Impala, N/A; 2015-2019 Cadillac XTS, N/A; 2016-2017 Buick Regal, N/A; and other listed GM applications in the fitment data.

Quality Assurance

Standard Ignition manufactures this vapor canister as an OE replacement component for emission control service. The design focus is proper evaporative emissions control, correct operating pressure, and fitment aligned to the original application.