Walker 16981 Catalytic Converter with Integrated Exhaust Manifold

EPA-Compliant Manifold Converter

Walker EPA 16981 is a catalytic converter with integrated exhaust manifold built for EPA emissions compliance on OBDII vehicles. It is a premium-grade replacement with a round body, one O2 sensor port, and a 2-bolt welded flange outlet.

Compatible with Mazda CX-5 applications, this manifold converter is built around the fitment and emissions requirements listed for the vehicle. The Walker EPA line focuses on compliant replacement parts for import and domestic applications, and part number 16981 is identified for 2014-2019 Mazda CX-5 EPA use.

Key Features

• EPA-compliant manifold converter for emissions-system replacement
• Integrated exhaust manifold design in a premium-grade construction
• Round body with one O2 sensor port
• 2-bolt welded flange outlet for secure exhaust connection
• Mounting hardware and outlet hardware are listed in the product data

Detailed Description

Walker 16981 combines the catalytic converter and exhaust manifold into one replacement assembly for vehicles that use this configuration. The unit is specified with a 26-inch overall length, a 5.8-inch converter body length, and a round body measuring 4 inches by 4 inches, which helps match the original exhaust layout on the listed application. For shoppers searching for a Mazda CX-5 catalytic converter with integrated exhaust manifold, this part number 16981 provides a direct emissions-system replacement option for the 2014-2019 model years.

This part cross-references AP Exhaust 641611 and Gates 22123 for the same application.

What It Is Used For

• Replacing a worn or failed catalytic converter assembly
• Restoring exhaust manifold and converter function in one unit
• Addressing emissions-system faults on OBDII vehicles
• Correcting exhaust leaks at the outlet connection
• Supporting proper oxygen sensor placement with one sensor port

Installation Notes and Tips

Verify the vehicle’s emissions configuration before installation and confirm the outlet style, O2 sensor port count, and overall length against the original assembly. The product data lists mounting hardware and outlet hardware, but fitment should still be checked against the existing exhaust layout on the Mazda CX-5.

Quality Assurance

Walker Ultra EPA-Compliant Manifold Converters are engineered to meet EPA emissions requirements for import and domestic OBDII vehicles. Part number 16981 is listed as EPA application-specific for 2014-2019 Mazda CX-5 use.