Dorman - OE Solutions Ceramic Coated Exhaust Manifold Kit for 2003-2007 Chevrolet GMC Isuzu Workhorse 674-859XD

Ceramic Coated Exhaust Manifold Kit for 2003-2007 Chevrolet GMC Isuzu Workhorse replaces worn or failing factory manifolds.

Built to meet the manufacturer’s design intent for reliable service.

Key Features

• Specialized ceramic coating for even heat distribution
• Prevents thermal cracking and improves durability
• Smoother exhaust gas flow for better performance
• Highly corrosion-resistant to maintain like-new appearance
• Compatible with Chevrolet GMC Isuzu Workhorse models 2003-2007

Benefits

• Reduced risk of manifold failure during high-performance driving
• Improved engine efficiency and power output
• Longer lifespan compared to standard cast manifolds
• Lower maintenance costs due to corrosion resistance

Application

This part is ideal for owners looking to upgrade or replace their vehicle’s exhaust manifold, especially those who drive aggressively or in harsh environments.

Fitment Notes

• 2003-2007 Chevrolet
• 2003-2007 GMC
• 2003-2007 Isuzu
• 2003-2007 Workhorse

Why Choose Dorman - OE Solutions?

• Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they’re made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.

What’s in the Box

• 1 KT

Item Dimensions

• 20.0in x 13.0in x 7.5in, 7.3lbs