Walker 16624 Catalytic Converter with Integrated Exhaust Manifold - Front

Overview of Walker EPA Catalytic Converter 16624

The Walker EPA Catalytic Converter with Integrated Exhaust Manifold (Part Number 16624) is designed for direct fitment on select Toyota and Lexus models. Engineered with a stainless steel body and ceramic substrate, this catalytic converter supports emission control for vehicles manufactured between 2006 and 2016.

• Direct fit catalytic converter with integrated exhaust manifold
• Constructed from durable stainless steel for corrosion resistance
• Ceramic substrate material for effective emission reduction
• Compatible with Toyota Sienna, Highlander, RAV4, and Lexus RX350 models
• Inlet and outlet feature round ports with welded flange connections
• Includes inlet and outlet gaskets plus bolt kit for installation
• Oxygen sensor located pre-catalyst for accurate emission monitoring
• Overall length of 17 inches for precise fitment

Walker EPA Product Line Details

The EPA product line by Walker focuses on meeting environmental standards with economy-grade components that provide reliable emission control solutions. This catalytic converter 16624 is part of the EPA series, designed to offer a balance between cost-effectiveness and compliance with emission regulations for non-CARB certified vehicles.

Product Specifications and Features

This catalytic converter features a single inlet and outlet, both with round port shapes and welded flange connections—6 bolt flange on the inlet and 3 bolt flange on the outlet. The converter body is made from stainless steel, ensuring durability and resistance to rust and corrosion. The ceramic substrate inside facilitates the conversion of harmful exhaust gases into less harmful emissions. The unit measures 17 inches in overall length and is designed for direct fit installation on compatible Toyota and Lexus vehicles from model years 2006 through 2016.

Compatible Vehicles and Applications

• Toyota Sienna (most popular fitment year 2015)
• Toyota Highlander
• Toyota RAV4
• Lexus RX350

This part is ideal for replacing a failing or damaged catalytic converter with integrated exhaust manifold on these specific models, helping to restore proper exhaust flow and emission control.

Common Issues Addressed by Walker Catalytic Converter 16624

• Excessive exhaust emissions causing failed emissions tests
• Reduced engine performance due to clogged or damaged converter
• Check engine light triggered by oxygen sensor readings pre-catalyst
• Exhaust leaks at the manifold or flange connections
• Corrosion or physical damage to the original catalytic converter

Installation Notes and Tips

This catalytic converter is designed for direct fit installation, matching OEM specifications for the inlet and outlet flange types and port shapes. Ensure the oxygen sensor is properly positioned pre-catalyst for accurate emission monitoring. Use the included inlet and outlet gaskets and bolt kit to secure the unit and prevent exhaust leaks. Professional installation is recommended to maintain proper exhaust system integrity and performance.

Quality Assurance and Warranty

Walker’s EPA catalytic converter 16624 is manufactured with stainless steel and ceramic materials to meet durability and emission control standards. While this product is not CARB certified, it is engineered to provide reliable service within its specified vehicle fitment range. Warranty details should be confirmed with the point of purchase or manufacturer documentation.