MagnaFlow Direct Fit Catalytic Converter

2000 Jeep Grand Cherokee 4.0L I6

Part #: 447222

Overview

The MagnaFlow Direct Fit Catalytic Converter 447222 is a precision-engineered replacement part designed specifically for the 2000 Jeep Grand Cherokee equipped with the 4.0L inline-6 engine. This California Grade CARB-compliant converter ensures your vehicle meets stringent emissions standards while maintaining optimal engine performance and fuel efficiency. Ideal for both professional mechanics and experienced DIY enthusiasts, it offers a hassle-free installation without the need for cutting or welding.

Built to restore your Jeep’s exhaust system to factory specifications, this catalytic converter helps keep your check engine light off and supports reliable emissions control. Whether you are performing routine maintenance or upgrading your exhaust system, this direct-fit converter provides a durable, long-lasting solution that complies with regulations across all 50 states.

Key Features

MagnaFlow’s catalytic converter combines advanced engineering with high-quality materials to deliver dependable performance and durability. Key features include:

• California Grade CARB compliant for legal use nationwide, including California, Colorado, New York, and Maine
• Direct-fit design tailored specifically for the 2000 Jeep Grand Cherokee 4.0L I6 for perfect fitment and function
• Mandrel-bent tubing eliminates flow restrictions, maintaining smooth exhaust flow for peak fuel economy and engine operation
• Constructed from high-strength 16 gauge 409 stainless steel tubing for exceptional corrosion resistance and extended service life
• Durable 308 stainless steel MIG welds provide robust structural integrity and withstand thermal cycling
• Engineered to replicate OEM-like flow dynamics, preserving factory performance and fuel efficiency
• Includes essential gaskets and hardware to simplify installation
• Designed using state-of-the-art 3D scanning technology to ensure precise fit and function
• Interchanges with OE part numbers 52101390 and 52101393 for reliable compatibility

Construction & Design

This catalytic converter is crafted with premium materials and advanced manufacturing techniques to ensure long-term durability and reliable operation. The 16 gauge 409 stainless steel tubing offers excellent resistance to corrosion and heat, critical for the harsh environment of the exhaust system. Mandrel bending preserves the original tubing geometry, preventing flow restrictions and maintaining exhaust efficiency.

Welds are performed using high-quality 308 stainless steel MIG welding, creating strong, long-lasting joints that endure thermal cycling and vibration. The design process incorporates precise 3D scanning and metrology to replicate the exact fit and flow characteristics of the original equipment, ensuring seamless integration with your Jeep Grand Cherokee’s exhaust system.

Installation & Fitment

The MagnaFlow direct-fit catalytic converter is engineered for straightforward installation on the 2000 Jeep Grand Cherokee 4.0L without requiring cutting, welding, or modifications. It includes all necessary gaskets and hardware to facilitate a smooth replacement process, saving time and effort. Installation is suitable for experienced DIY mechanics and professional technicians alike, provided proper tools are used.

This part is a direct replacement for OE catalytic converters with part numbers 52101390 and 52101393, ensuring perfect compatibility and reliable operation.

What's Included

• MagnaFlow direct-fit catalytic converter
• Essential gaskets
• Installation hardware

Ideal For

This catalytic converter is ideal for 2000 Jeep Grand Cherokee owners seeking a high-quality, CARB-compliant replacement that maintains factory emissions standards and vehicle performance. It is perfect for those performing exhaust repairs or upgrades who want a direct-fit solution that simplifies installation and ensures long-term durability.

Emissions Note

This catalytic converter is CARB compliant and legal for sale and use in all 50 states, including California and other CARB-restricted states such as Colorado, New York, and Maine. Installation is permitted only if the vehicle’s Executive Order (EO) number and Engine Family Number (EFN) appear in this converter’s CARB Executive Order, ensuring full compliance with state emissions regulations.

MagnaFlow is a performance exhaust manufacturer best known for cat‑back and axle‑back systems, mufflers, and catalytic converters engineered for quality sound and improved flow. Their vehicle-specific exhaust options span muscle, import, and truck applications—making MagnaFlow a staple upgrade when you want a deeper tone, cleaner fitment, and a proven performance-focused exhaust setup.