Walker 83397 Catalytic Converter with Integrated Exhaust Manifold - Front

Overview of Walker CalCat Catalytic Converter 83397

The Walker CalCat Catalytic Converter with Integrated Exhaust Manifold (part number 83397) is designed specifically for Nissan Altima models from 2004 to 2006. This catalytic converter meets California Air Resources Board (CARB) standards, ensuring compliance with emissions regulations while maintaining reliable exhaust performance.

• Compatible with Nissan Altima 2004-2006
• CARB Executive Order Number D-182-63 certified
• Integrated exhaust manifold design
• Stainless steel converter body with ceramic substrate
• 5 bolt welded flange inlet and 2 bolt welded flange outlet
• Overall length of 19.5 inches with a 4-inch converter body
• Round body shape with oval inlet and round outlet port shapes

Product Line: Walker CalCat

The CalCat product line by Walker focuses on catalytic converters that integrate the exhaust manifold for streamlined installation and improved fitment. This design reduces the number of connections in the exhaust system, which can help minimize potential leak points. The CalCat line is engineered to meet strict emissions standards, including CARB certification, making it suitable for vehicles requiring compliance with California regulations.

Detailed Product Description

This Walker CalCat catalytic converter (part number 83397) features a stainless steel body that provides durability and resistance to corrosion. The ceramic substrate inside the converter body facilitates effective catalytic reactions to reduce harmful emissions. The converter body measures 4 inches in length, width, and height, with an overall length of 19.5 inches, ensuring proper fitment within the exhaust system of Nissan Altima models from 2004 to 2006. The inlet uses a 5 bolt welded flange with an oval port shape, while the outlet has a 2 bolt welded flange with a round port shape, designed for secure and precise connections.

Common Applications and Issues Addressed

• Replacement for faulty or damaged catalytic converters on Nissan Altima 2004-2006
• Helps resolve check engine light issues related to emissions
• Reduces harmful exhaust emissions to meet CARB standards
• Improves exhaust flow and engine performance by restoring proper catalytic function
• Addresses exhaust leaks caused by manifold or converter damage

Installation Notes and Tips

When installing the Walker CalCat catalytic converter 83397, ensure compatibility with Nissan Altima models from 2004 to 2006. The integrated exhaust manifold design simplifies installation by reducing the number of components. Use proper torque specifications for the 5 bolt welded flange inlet and 2 bolt welded flange outlet to prevent exhaust leaks. It is recommended to inspect surrounding exhaust components for wear or damage during installation.

Quality Assurance and Certification

This catalytic converter is CARB certified under Executive Order Number D-182-63, confirming it meets California emissions standards. The stainless steel construction and ceramic substrate provide durability and reliable performance. Walker backs the CalCat line with quality manufacturing standards, ensuring the part meets OEM specifications for fit and function.