Magnaflow Direct Fit Catalytic Converter

Dodge Ram 1500 04 5.7L Hemi

Part #: 4651610

Overview

The Magnaflow Direct-Fit Catalytic Converter 4651610 is a precision-engineered replacement part designed specifically for the 2004 Dodge Ram 1500 equipped with 3.7L or 4.7L engines. This catalytic converter ensures your vehicle remains compliant with California Air Resource Board (CARB) regulations, making it an ideal choice for owners in California and other CARB-restricted states. Built to meet or exceed OEM standards, it restores your truck’s emissions system to factory specifications without sacrificing performance or fitment.

Perfect for those needing a reliable and durable replacement for a damaged or failing catalytic converter, this direct-fit unit offers a hassle-free installation experience with no cutting or welding required. Magnaflow’s commitment to quality guarantees a product that fits precisely and functions flawlessly, helping to keep your check engine light off and your emissions system operating efficiently.

Key Features

This catalytic converter combines advanced engineering and premium materials to deliver dependable performance and emissions compliance:

• California Grade CARB compliant for legal use in California and other CARB states
• Direct-fit design tailored specifically for the 2004 Dodge Ram 1500 3.7L and 4.7L engines
• Free-flowing mandrel-bent tubing optimizes exhaust flow and reduces backpressure
• Highly corrosion-resistant stainless steel construction for long-lasting durability
• Single laser fusion weld on spun body design minimizes leak potential
• Compact, low-mass design enhances thermal efficiency and catalyst light-off speed
• OE spun body replication ensures consistent fit and function
• Interchanges with OE part numbers 5536 6326AC and 5536 6326AB
• Manufactured using advanced 3D scanning technology for precise R&D and quality control

Construction & Design

Magnaflow’s catalytic converter features a robust stainless steel construction that resists rust and corrosion, ensuring longevity even under harsh driving conditions. The spun body design replicates the original equipment manufacturer’s specifications, providing a tight seal and reducing the risk of exhaust leaks. The single laser fusion weld enhances structural integrity while maintaining a compact form factor that promotes faster catalyst warm-up and improved thermal efficiency.

Mandrel-bent tubing ensures smooth exhaust flow without restrictions, helping maintain engine performance and fuel efficiency. The use of state-of-the-art 3D scanning during development guarantees that each unit matches the exact contours and dimensions required for a direct-fit installation.

Installation & Fitment

This direct-fit catalytic converter is designed for straightforward installation on the 2004 Dodge Ram 1500 with 3.7L or 4.7L engines. It requires no cutting, welding, or modifications, allowing for a hassle-free replacement using standard automotive tools. The precise fitment ensures proper alignment with existing exhaust components, reducing installation time and potential issues.

Whether you are a professional mechanic or a knowledgeable DIY enthusiast, this converter provides a reliable, OEM-quality solution that restores your vehicle’s emissions system to factory standards.

What's Included

• One Magnaflow California Direct-Fit Catalytic Converter (Part #4651610)
• Pre-installed flanges and gaskets as required for direct replacement
• Installation instructions (where applicable)

Ideal For

This catalytic converter is ideal for 2004 Dodge Ram 1500 owners who need a dependable, CARB-compliant replacement part that ensures emissions compliance and maintains vehicle performance. It suits those seeking an easy-to-install, durable converter that meets strict California emissions standards without sacrificing quality or fitment.

Emissions Note

This product is California Air Resource Board (CARB) compliant and has undergone additional testing to meet CARB guidelines. It is legal for use in California and other CARB-restricted states on the specified vehicle application. Installing this converter helps keep your vehicle emissions within regulatory limits and prevents 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.