Dorman 674-697 Exhaust Manifold - Right

Durable Cast Iron Exhaust Manifold for Ford and Lincoln Vehicles

The Dorman 674-697 exhaust manifold is engineered to provide reliable exhaust flow for select Ford and Lincoln models. Designed with cast iron construction and including essential mounting hardware, this exhaust manifold ensures a secure fit and long-lasting performance.

• Constructed from durable cast iron for strength and heat resistance
• Natural color finish with irregular port shape for optimized exhaust flow
• Includes 2 manifold gaskets, 2 studs, 2 nuts, and a heat shield for complete installation
• Tube wall thickness of 3 mm for enhanced durability
• Compatible with Ford Expedition, F-150, F-250 Super Duty, F-350 Super Duty, Lincoln Mark LT, and Navigator

Product Details and Specifications

This Dorman exhaust manifold (part number 674-697) is designed without an oxygen sensor port, making it suitable for vehicles where the sensor is located downstream. The irregular port shape is tailored to match the exhaust ports of the specified Ford and Lincoln models, ensuring proper exhaust gas evacuation. The included heat shield helps protect surrounding components from excessive heat, while the regular grade type material balances durability and cost-effectiveness. The package contains all necessary mounting hardware and gaskets to facilitate a straightforward replacement process.

Compatible Vehicles and Applications

• Ford Expedition
• Ford F-150
• Ford F-250 Super Duty
• Ford F-350 Super Duty
• Lincoln Mark LT
• Lincoln Navigator

This exhaust manifold is intended for use in repairing or replacing damaged or worn manifolds on the above vehicles, restoring proper exhaust flow and engine performance.

Common Issues Addressed by This Exhaust Manifold

• Exhaust leaks causing noise and reduced engine efficiency
• Cracked or warped manifolds leading to poor exhaust flow
• Failed or missing heat shields increasing risk of heat damage
• Corroded mounting points causing loose or unstable manifold fitment
• Gasket failures resulting in exhaust gas leaks

Installation Notes and Tips

Before installation, ensure the engine is cool to avoid burns. Use the included gaskets and mounting hardware to secure the manifold tightly, following manufacturer torque specifications. Inspect the exhaust ports and surrounding components for damage or debris. The absence of an oxygen sensor port means the sensor should remain in its original downstream location. Properly install the heat shield to protect adjacent parts from heat exposure.

Quality Assurance and Warranty Information

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit and function. The 674-697 part is made from cast iron to withstand high temperatures and resist cracking. This product includes a limited warranty covering defects in material and workmanship, providing confidence in its durability and performance.