Dorman 674-303 Catalytic Converter with Integrated Exhaust Manifold

Overview of Dorman Catalytic Converter with Integrated Exhaust Manifold

The Dorman 674-303 catalytic converter with integrated exhaust manifold is designed to meet the exhaust needs of select Chrysler, Dodge, Fiat, Jeep, and Ram vehicles. This natural-colored, stainless steel converter offers a reliable solution for emissions control and exhaust flow in models like the Jeep Cherokee, Dodge Dart, and Fiat 500X.

• Constructed from durable stainless steel for corrosion resistance
• Includes one inlet and one outlet with flanged outlet type
• Features two sensor ports for accurate emissions monitoring
• Comes with an inlet gasket and outlet gasket for proper sealing
• Overall length of 20 inches with a 4-inch converter body length
• Oval-shaped inlet port with eight mounting holes for secure fitment
• Compatible with multiple makes and models including Jeep Renegade and Ram ProMaster City

Detailed Product Description

The Dorman 674-303 catalytic converter integrates the exhaust manifold and converter body into a single unit, simplifying installation and improving exhaust flow efficiency. Its stainless steel construction ensures durability under high-temperature conditions and resistance to rust. The converter body measures 4 inches in length, while the overall assembly extends 20 inches, designed to fit specific vehicle exhaust systems precisely. The flanged outlet type and oval inlet port with multiple mounting holes provide a secure and leak-free connection. Two sensor ports allow for proper oxygen sensor installation, essential for maintaining engine performance and emissions compliance. This part includes an inlet gasket and outlet gasket to ensure a tight seal during installation.

Compatible Vehicles and Applications

• Chrysler 200
• Dodge 500X and Dart
• Fiat 500X
• Jeep Cherokee, Compass, Renegade
• Ram ProMaster City

This catalytic converter with integrated exhaust manifold is designed specifically for these models, ensuring proper fit and function without modification.

Common Issues Addressed by This Part

• Excessive exhaust emissions causing failed emissions tests
• Damaged or cracked exhaust manifold leading to exhaust leaks
• Reduced engine performance due to faulty catalytic converter
• Check engine light triggered by oxygen sensor errors
• Corrosion or rust damage to original exhaust manifold or converter

Installation Notes and Tips

Installation requires removal of the existing exhaust manifold and catalytic converter assembly. The included inlet and outlet gaskets should be replaced to ensure a proper seal. Note that inlet mounting hardware is not included, so existing bolts or new hardware may be necessary. Proper torque specifications should be followed to avoid leaks or damage. The two sensor ports must be connected to the vehicle’s oxygen sensors to maintain emissions system functionality.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 674-303 catalytic converter with integrated exhaust manifold is constructed from high-quality stainless steel to provide long-lasting durability. While this part is not California Air Resources Board (CARB) certified, it is designed to comply with regular grade emissions requirements. Warranty coverage details should be confirmed with the distributor or installer.