Standard Ignition CP3688 Vapor Canister

Vapor Canister for Kia Rio and Hyundai Accent

Standard Ignition CP3688 is a vapor canister for the evaporative emission control system. It uses charcoal filter media and a black housing with two ports to help manage fuel vapor storage and routing in the EVAP system.

Key Features

• Charcoal filter media for vapor adsorption
• Black finish
• Two-port design
• 5/8" hose size
• Filter element included
• Standard Ignition CP3688 replacement part

Detailed Description

This vapor canister is built for direct-fit applications on 2018-2023 Kia Rio and 2018-2022 Hyundai Accent models. Standard Ignition CP3688 is used in the evaporative emission control system to store fuel vapors and route them through the EVAP circuit as the vehicle operates. The charcoal media helps capture vapors within the canister assembly, while the two-port layout supports system plumbing on the listed applications. If you are replacing a worn or damaged vapor canister on a Kia Rio or Hyundai Accent, CP3688 provides the correct fitment for the specified model years.

This part cross-references 2-70548 and 31420H9600 for the same application.

What It Helps Address

• EVAP leak codes related to a damaged canister
• Fuel vapor odor near the vehicle
• Cracked or saturated charcoal canister media
• Emission system faults tied to vapor storage
• Improper vapor routing in the evaporative system

Installation Notes and Tips

Verify hose size, port layout, and mounting points before installation. Transfer any vehicle-specific connections as required by the application, and inspect EVAP hoses for cracks, soft spots, or loose fittings while the canister is removed. After installation, clear diagnostic trouble codes and confirm the evaporative system operates normally.

Quality Assurance

Standard Ignition supplies replacement emission control components for service applications, and CP3688 is built to match the listed vehicle fitment and system configuration.