Magnaflow Direct-Fit Catalytic Converter

2004–2005 Dodge Ram 1500 5.7L HEMI

Part #: 4651596

Overview

The Magnaflow Direct-Fit Catalytic Converter 4651596 is engineered specifically for the 2004 and 2005 Dodge Ram 1500 equipped with the 5.7L HEMI engine. Designed as a direct replacement for the original equipment catalytic converter, it provides a reliable and durable solution to maintain your vehicle’s emissions compliance and keep the check engine light off. This converter is ideal for Dodge Ram owners who need a high-quality, California Air Resource Board (CARB) compliant part that ensures proper fitment and optimal engine performance without requiring any modifications.

Whether you are repairing a damaged or clogged catalytic converter or upgrading to a California-grade compliant component, this Magnaflow converter offers a seamless installation experience and long-lasting durability. It supports your truck’s emissions system integrity while helping you meet stringent environmental standards.

Key Features

This direct-fit catalytic converter combines advanced manufacturing techniques with premium materials to deliver dependable performance and emissions compliance. Key features include:

• California Grade CARB Compliant design, meeting or exceeding California Air Resource Board requirements
• Direct-fit replacement for 2004–2005 Dodge Ram 1500 5.7L HEMI, compatible with OE part numbers 5536 6326AC and 5536 6326AB
• Free-flowing mandrel-bent tubing for improved exhaust flow and reduced backpressure
• Highly corrosion-resistant stainless steel construction for enhanced durability and longevity
• Spun body design replicating original equipment for precise fit and function
• Single laser fusion weld to minimize leak potential and ensure structural integrity
• Compact, low-mass design promoting greater thermal efficiency and quicker catalyst light-off
• Manufactured using advanced 3D scanning technology for exact dimensional accuracy

Construction & Design

Magnaflow’s catalytic converter is crafted from premium stainless steel, providing superior resistance to rust and corrosion even under harsh operating conditions. The spun body construction mirrors the original equipment design, ensuring a perfect fit and reliable sealing. A single laser fusion weld enhances the structural strength of the converter while reducing the risk of exhaust leaks.

Mandrel-bent tubing maintains a consistent diameter throughout bends, optimizing exhaust flow and minimizing restrictions. During development, advanced 3D scanning technology is employed to guarantee that every unit matches the exact specifications of the factory part. This meticulous engineering results in a converter that installs easily and performs reliably over the long term.

Installation & Fitment

This catalytic converter is designed for direct bolt-on installation on 2004 and 2005 Dodge Ram 1500 models with the 5.7L HEMI engine. It requires no cutting, welding, or additional modifications when installed with the proper tools. Its precise fitment ensures a straightforward replacement process, saving time and labor costs. Both vehicle owners and professional installers will appreciate the ease of installation and the confidence that comes with a perfect fit.

What's Included

• One Magnaflow Direct-Fit Catalytic Converter (Part #4651596)

Note: Pre-installed gaskets and hardware are not included and may be required depending on vehicle condition.

Ideal For

This catalytic converter is ideal for Dodge Ram 1500 owners from model years 2004 to 2005 who need a reliable, emissions-compliant replacement part. It is well suited for those repairing a faulty or damaged catalytic converter or anyone seeking a California Air Resource Board (CARB) compliant upgrade to maintain legal emissions standards in California and other CARB-restricted states.

Emissions Note

This Magnaflow catalytic converter is California Grade CARB Compliant and has undergone additional testing to meet CARB guidelines. It is legal for use in California and other states with similar emissions regulations for the specified vehicle applications. Installing this converter helps ensure your Dodge Ram 1500 remains environmentally responsible and compliant with state emissions laws.

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.