Magnaflow Direct-Fit Catalytic Converter

2000 Dodge Durango 5.2L V8 / 5.9L V8

Part #: 4451280

Overview

The Magnaflow Direct-Fit Catalytic Converter is a precision-engineered replacement part designed specifically for the 2000 Dodge Durango equipped with 5.2L or 5.9L V8 engines. This catalytic converter ensures your vehicle remains compliant with emissions regulations while maintaining optimal engine performance. Manufactured to meet or exceed California Air Resource Board (CARB) standards, it effectively reduces harmful exhaust emissions to keep your check engine light off and help your Durango pass state inspections.

Ideal for owners seeking a hassle-free, direct-fit replacement, this catalytic converter requires no modifications such as cutting or welding. Whether you are repairing a failing OEM converter or upgrading to a CARB-compliant component, Magnaflow’s product delivers reliable emissions control and long-lasting durability.

Key Features

Combining advanced engineering with durable materials, this catalytic converter offers dependable emissions control and straightforward installation. Key features include:

• CARB-compliant design certified for use in California and other CARB-restricted states
• Direct-fit replacement for 2000 Dodge Durango 5.2L and 5.9L V8 engines with no cutting or welding required
• Mandrel-bent tubing for unrestricted exhaust flow and improved engine efficiency
• Highly corrosion-resistant stainless steel construction for extended service life
• Spun body design replicating original equipment for precise fitment
• Single laser fusion weld to minimize leak potential and enhance durability
• Compact, low-mass design for improved thermal efficiency and quicker catalytic converter light-off
• Interchanges with OEM part numbers 5210 3374AC and 5210 3374AE
• Developed using advanced 3D scanning technology to ensure exact fit and function

Construction & Design

Magnaflow’s catalytic converter features a robust stainless steel body that resists rust and corrosion, ensuring longevity even under harsh driving conditions. The spun body construction mirrors the original equipment design, providing a seamless fit within the factory exhaust system. Mandrel-bent tubing maintains smooth exhaust flow, reducing backpressure and supporting engine efficiency. The single laser fusion weld enhances structural integrity and prevents leaks, while the compact design promotes faster catalytic converter light-off, improving emissions control during cold starts.

Installation & Fitment

This catalytic converter is engineered for a direct bolt-on installation on the 2000 Dodge Durango with 5.2L or 5.9L V8 engines. It requires no cutting, welding, or additional modifications, allowing for a straightforward replacement process. With proper tools and basic mechanical knowledge, you can install this converter quickly and confidently. The precise fitment ensures perfect alignment with factory exhaust flanges and mounting points, minimizing installation time and vehicle downtime.

What's Included

• Magnaflow California Grade Direct-Fit Catalytic Converter (Part #4451280)

Note: Pre-installed gaskets and hardware are not included and may be required for installation.

Ideal For

This catalytic converter is ideal for 2000 Dodge Durango owners who need a reliable, CARB-compliant replacement part that maintains factory emissions standards. It suits drivers looking to restore proper emissions function, pass state inspections, or replace a damaged or failing catalytic converter without compromising vehicle performance.

Emissions Note

This product is certified to meet or exceed California Air Resource Board (CARB) requirements and has undergone additional testing to ensure compliance with CARB guidelines. It is legal for use in California and other CARB-restricted states on the specified vehicle application. Installing this catalytic converter helps maintain your vehicle’s emissions compliance and avoids check engine light issues related to catalytic converter faults.

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.