Magnaflow Direct Fit Catalytic Converter

Dodge Ram 1500 04 5.7L Hemi

Part #: 4651609

Overview

The Magnaflow Direct Fit Catalytic Converter is engineered specifically for the 2004 Dodge Ram 1500 equipped with 3.7L V6 or 4.7L V8 engines. This California Air Resources Board (CARB) compliant converter offers a reliable replacement that meets strict emissions standards while maintaining optimal exhaust flow. Designed to prevent check engine light issues, it ensures your vehicle stays emissions legal without sacrificing performance.

Ideal for owners needing a direct replacement or an upgrade to a CARB-compliant component, this catalytic converter provides a precise fit and durable construction. Whether repairing a damaged converter or maintaining factory emissions compliance, Magnaflow delivers a dependable solution that installs easily and performs consistently.

Key Features

This direct-fit catalytic converter combines advanced engineering and premium materials to deliver a superior replacement part for your Dodge Ram 1500. Key features include:

• California Grade CARB compliant design for legal use in California and CARB-restricted states
• Free-flowing mandrel-bent tubing to optimize exhaust flow and reduce backpressure
• Highly corrosion-resistant stainless steel construction for extended durability
• Spun body design replicating original equipment for precise fit and function
• Single laser fusion weld to minimize leak potential and enhance structural integrity
• Compact, low-mass design promoting greater thermal efficiency
• Direct-fit installation requiring no cutting or welding
• Interchanges with OE parts 5536 6326AC and 5536 6326AB

Construction & Design

Magnaflow’s catalytic converter features a spun body design crafted from premium stainless steel, ensuring excellent resistance to rust and corrosion even under harsh operating conditions. The mandrel-bent tubing maintains smooth exhaust flow by eliminating sharp bends that can cause turbulence and backpressure, helping preserve engine efficiency.

The single laser fusion weld enhances structural strength and reduces the risk of leaks, a common issue with lower-quality replacements. Advanced 3D scanning technology was used during development to replicate the original equipment manufacturer’s specifications with high precision, guaranteeing a seamless fit and reliable performance that meets or exceeds factory standards.

Installation & Fitment

This catalytic converter is designed for direct-fit installation on the 2004 Dodge Ram 1500 with 3.7L V6 or 4.7L V8 engines. The exact OE-style fitment allows for a straightforward replacement process without the need for cutting, welding, or additional modifications when using proper tools. This makes it an excellent choice for both DIY enthusiasts and professional mechanics, reducing installation time and complexity.

What's Included

• One Magnaflow California Direct-Fit Catalytic Converter (Part #4651609)
• Installation hardware not included – OEM or equivalent fasteners recommended

Ideal For

This catalytic converter is perfect for 2004 Dodge Ram 1500 owners who require a CARB-compliant replacement that maintains factory emissions standards. It is well-suited for those looking to restore their vehicle’s emissions system to proper working order without compromising exhaust flow or durability. Additionally, it serves mechanics and automotive enthusiasts seeking a reliable, easy-to-install converter that fits precisely and performs consistently.

Emissions Note

This product is designed to meet or exceed California Air Resources Board (CARB) requirements and has undergone additional testing to comply 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 ensure your Dodge Ram 1500 remains compliant with state emissions regulations, avoiding potential fines and failed inspections.

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.