Dorman 674-910 Exhaust Manifold

Durable Cast Iron Exhaust Manifold for Dodge Ram 2500 and 3500

The Dorman 674-910 exhaust manifold is engineered to provide reliable exhaust flow management for Dodge Ram 2500 and Ram 3500 trucks. Constructed from cast iron with a natural finish, this exhaust manifold is designed to withstand high temperatures and harsh operating conditions.

• Material: Heavy-duty cast iron for durability and heat resistance
• Color: Natural cast iron finish
• Port Shape: Round ports for optimized exhaust flow
• Mounting Hardware Included: Yes, for straightforward installation
• Gasket and Seal Included: Yes, ensuring a proper seal and preventing leaks
• Heat Shield Included: Yes, to protect surrounding components from heat
• Package Contents: Exhaust manifold, 6 manifold gaskets and 1 flange, 4 bolts, and 4 nuts

Product Details and Specifications

The Dorman 674-910 exhaust manifold is designed specifically for Dodge Ram 2500 and Ram 3500 models, providing a direct replacement that meets OEM specifications. Its cast iron construction offers excellent thermal durability and resistance to cracking under extreme heat cycles. The round port shape facilitates efficient exhaust gas flow, which can help maintain engine performance and emissions compliance. Included mounting hardware, gaskets, and a heat shield simplify the installation process and ensure a secure, leak-free fit.

Common Applications and Problem Resolution

• Replacement for cracked or warped exhaust manifolds causing exhaust leaks
• Eliminates exhaust manifold gasket failures and associated noise
• Restores proper exhaust flow to improve engine efficiency
• Prevents heat damage to nearby engine components with included heat shield
• Addresses mounting hardware loss or damage during previous repairs

Installation Notes and Tips

When installing the Dorman 674-910 exhaust manifold on Dodge Ram 2500 or 3500 trucks, ensure all old gasket material is thoroughly cleaned from the mounting surfaces. Use the included gaskets and hardware to achieve a proper seal and torque bolts to manufacturer specifications. The included heat shield should be positioned correctly to protect adjacent components from heat exposure. It is recommended to inspect the exhaust system for leaks after installation and retighten bolts if necessary after initial engine warm-up.

Quality Assurance and Warranty Information

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit, form, and function. The 674-910 part number undergoes rigorous quality control to ensure durability and performance. This product includes a limited warranty against defects in material and workmanship, providing confidence in its long-term reliability for Dodge Ram 2500 and Ram 3500 applications.