Dorman 674-859XD Exhaust Manifold - Left

Overview of the Dorman 674-859XD Exhaust Manifold

The Dorman 674-859XD exhaust manifold is engineered from durable cast iron and finished in black for corrosion resistance. Designed to meet the demands of specific vehicle applications, this exhaust manifold offers reliable performance and longevity.

• Constructed from cast iron for strength and heat resistance
• Black finish to protect against rust and wear
• Round port shape for efficient exhaust flow
• Includes heat shield to reduce engine bay temperatures
• Comes with mounting hardware and gasket for proper installation
• Features six mounting holes for secure fitment
• Tube wall thickness of 5 mm for durability

Detailed Product Description

The Dorman 674-859XD exhaust manifold is crafted from cast iron, a material known for its ability to withstand high temperatures and resist cracking under thermal stress. Its black coating provides an additional layer of protection against corrosion, extending the life of the manifold. The round port shape is designed to optimize exhaust gas flow, which can help maintain engine efficiency and reduce backpressure. This manifold includes a heat shield to help protect surrounding components from excessive heat, contributing to overall engine bay safety.

Included in the package are the exhaust manifold itself, one manifold gasket, three studs, and three nuts, ensuring you have the necessary components for a proper installation. The six mounting holes allow for a secure and stable attachment to the engine block. With a tube wall thickness of 5 mm, this manifold balances durability with weight considerations.

Common Applications and Issues Addressed

• Replacement for cracked or warped exhaust manifolds causing exhaust leaks
• Restores proper exhaust flow to improve engine performance
• Eliminates exhaust manifold noise and rattling due to damaged components
• Prevents heat damage to nearby engine parts with included heat shield
• Helps maintain emissions compliance by ensuring proper exhaust sealing

Installation Notes and Tips

• Ensure the engine is cool before beginning installation to avoid burns
• Use the included gasket and mounting hardware for a secure, leak-free fit
• Torque mounting bolts to manufacturer specifications to prevent warping
• Inspect surrounding exhaust components for wear or damage during replacement
• Check oxygen sensor ports compatibility as this manifold does not include an oxygen sensor port

Quality Assurance and Warranty

Dorman manufactures this exhaust manifold to meet or exceed OEM standards for fit, form, and function. The use of cast iron and inclusion of a heat shield reflect a focus on durability and safety. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship.