AP Exhaust 643136 Catalytic Converter - Rear

AP Exhaust 643136 Catalytic Converter

AP Exhaust 643136 is a Federal / EPA direct-fit catalytic converter built for precise OE-style fitment and efficient exhaust flow. It is engineered for the rear position on select Chevrolet Cruze applications, with stainless steel construction, a ceramic substrate, and one O2 sensor port.

Key Features

• Federal / EPA direct-fit catalytic converter
• Stainless steel body for corrosion resistance
• Ceramic substrate material
• One O2 sensor port
• 3-bolt welded flange inlet and 2-bolt welded flange outlet
• Includes inlet gasket, outlet gasket, and outlet hardware
• Overall length: 52 inches

Fitment Details

• Fits 2016 Chevrolet Cruze Limited, rear. Direct fit; Federal and California emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY. Restrictions may apply in other states.
• Fits 2011-2015 Chevrolet Cruze, N/A. Direct fit; Federal and California emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY. Restrictions may apply in other states.
• Fits 2011-2015 Chevrolet Cruze, rear. Direct fit; Federal and California emissions. Not for sale or use on vehicles licensed in CA, CO, ME, or NY. Restrictions may apply in other states.

Detailed Description

Built to OE dimensions, AP Exhaust part number 643136 uses advanced manufacturing methods to support consistent fitment and converter performance. The stainless steel shell and ceramic substrate are selected for durability and efficient exhaust treatment, while the welded flange connections help maintain a secure installation on the rear exhaust section of the Chevrolet Cruze and Chevrolet Cruze Limited.

This part number 643136 is a practical replacement choice when servicing emissions-related exhaust components on 2011-2015 Chevrolet Cruze and 2016 Chevrolet Cruze Limited models. It cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues Addressed

• Failed or restricted rear catalytic converter
• Check engine light related to catalyst efficiency
• Exhaust flow loss from a damaged converter core
• Rust or corrosion at the converter body or flanges
• Emissions test failure caused by a worn converter

Installation Notes

Verify the vehicle’s emissions configuration and rear-position application before installation. This converter uses a 3-bolt welded flange inlet and a 2-bolt welded flange outlet, with one O2 sensor port, so confirm sensor and flange alignment before tightening. Inlet gasket, outlet gasket, and outlet hardware are listed in the product attributes; inlet hardware is not included.

Quality Assurance

AP Exhaust uses automated workstations, spinner welding equipment, and high-speed production lines to build converters to exact OE dimensions and fitment. The ARISTO substrate chemistry is used to support efficient catalyst loading and competitive converter performance.