Dorman 674-685 Exhaust Manifold - Right

Durable Cast Iron Exhaust Manifold for Ram Trucks

The Dorman 674-685 exhaust manifold is engineered to provide reliable exhaust flow management for Ram 1500, 1500 Classic, 2500, 3500, and 4000 models. Crafted from cast iron with a natural finish, this manifold offers strength and durability for demanding driving conditions.

• Constructed from durable cast iron material
• Natural color finish for corrosion resistance
• Irregular port shape designed for optimal exhaust flow
• Includes heat shield to protect surrounding components
• Comes with inlet gasket, bolts, and nuts for installation
• Tube wall thickness of 5 mm for enhanced durability
• Compatible with Ram 1500, 1500 Classic, 2500, 3500, and 4000 models

Product Details and Specifications

The Dorman 674-685 exhaust manifold is manufactured from cast iron, a material known for its heat resistance and long service life. Its natural color finish helps resist corrosion over time. The manifold features an irregular port shape, designed to match the exhaust ports of compatible Ram trucks, ensuring efficient exhaust gas evacuation. With a tube wall thickness of 5 mm, this manifold maintains structural integrity under high-temperature conditions. The product package includes a heat shield to protect adjacent engine components from excessive heat, as well as an inlet gasket, two bolts, and two nuts to facilitate proper installation.

Compatible Ram Truck Models and Applications

• Ram 1500 (various model years)
• Ram 1500 Classic
• Ram 2500
• Ram 3500
• Ram 4000

This exhaust manifold is designed specifically for these Ram models, ensuring a precise fit and proper exhaust system function.

Common Issues Addressed by This Exhaust Manifold

• Exhaust leaks caused by cracked or warped manifolds
• Reduced engine performance due to inefficient exhaust flow
• Excessive engine noise from damaged exhaust components
• Overheating of nearby engine parts without a heat shield
• Failed emissions tests related to exhaust system integrity

Installation Notes and Tips

When installing the Dorman 674-685 exhaust manifold, ensure all old gasket material is thoroughly cleaned from the mounting surface to prevent leaks. Use the included inlet gasket and mounting hardware for a secure fit. Torque bolts to manufacturer specifications to avoid warping the manifold. The included heat shield should be properly positioned to protect surrounding components from heat damage.

Quality Assurance and Warranty

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit and function. This product undergoes rigorous quality control to ensure durability and performance. Please refer to Dorman's warranty policy for specific coverage details.