Dorman 674-544 Exhaust Manifold - Front

Durable Cast Iron Exhaust Manifold for GM Vehicles

The Dorman 674-544 exhaust manifold is engineered to provide reliable exhaust flow for select Buick, Chevrolet, Oldsmobile, and Pontiac models. Constructed from cast iron with a natural finish, this manifold is designed to withstand high temperatures and deliver consistent performance.

• Made from durable cast iron material for long-lasting strength
• Includes mounting hardware, gasket, studs, and nuts for complete installation
• Natural color finish with an irregular port shape for precise fitment
• Comes with a heat shield to protect surrounding components
• Compatible with multiple GM models including Buick Century, Chevrolet Malibu, Pontiac Grand Prix, and more

Product Details and Specifications

The Dorman 674-544 exhaust manifold features a cast iron construction that offers excellent heat resistance and durability under demanding engine conditions. Its irregular port shape is designed to match the exhaust ports of compatible engines, ensuring proper exhaust gas flow and reducing backpressure. This manifold includes a heat shield to help manage engine bay temperatures and protect nearby parts. The package contains the exhaust manifold itself, one manifold gasket and flange, three studs, and three nuts, providing all necessary components for a secure and proper installation.

Compatible Vehicles and Applications

This exhaust manifold is compatible with a range of GM vehicles, including Buick Achieva, Century, Regal, Chevrolet Alero, Malibu, Monte Carlo, Oldsmobile Cutlass, and Pontiac Grand Am, Grand Prix, and Skylark models. The part number 674-544 ensures you receive the correct manifold designed specifically for these applications, helping maintain engine efficiency and emissions compliance.

Common Issues Addressed by This Exhaust Manifold

• Exhaust leaks caused by cracked or warped manifolds
• Reduced engine performance due to improper exhaust flow
• Excessive engine bay heat damaging nearby components
• Failed emissions tests related to exhaust system leaks
• Noise issues from damaged or missing exhaust manifold parts

Installation Notes and Tips

Installation of the Dorman 674-544 exhaust manifold includes all necessary mounting hardware and gasket to ensure a proper seal. It is recommended to clean the mounting surface thoroughly before installation to prevent leaks. Torque the nuts and studs to manufacturer specifications to avoid warping the manifold. The included heat shield should be installed to protect adjacent engine components from heat damage.

Quality Assurance and Warranty

Dorman exhaust manifolds are manufactured to meet or exceed OEM standards for fit, form, and function. The 674-544 part is backed by Dorman's quality assurance processes to ensure durability and performance. Please refer to Dorman's warranty policy for specific coverage details.