Dorman 674-497 Limited Lifetime Warranty

The original equipment exhaust manifolds on certain Jeep Wagoneer SUVs and Ram 1500 trucks are equipped with a cylinder deactivation system that shuts down four of the engine's eight cylinders during highway driving to improve fuel economy. This system causes two of the cylinder ports to cool while two remain hot, stressing the exhaust manifold to the point of warping or cracking. Eliminate potential cracking issues with this Dorman OE Fix exhaust manifold. This upgraded design features an integrated upper flange that strengthens the sides of the manifold, a thicker lower flange, and a ceramic coating that provides uniform heat distribution. This precision-engineered manifold is designed to seamlessly replace the original equipment left-side manifold on specified vehicles.

Features & Benefits

• Improved design: this left side exhaust manifold for select jeep wagoneer and ram 1500 vehicles features upgrades to help prevent damage caused by thermal cycling of the cylinder deactivation system
• Innovative construction: features an integrated upper flange that strengthens the sides of the manifold, a thicker lower flange, and a ceramic coating that provides uniform heat distribution
• Ideal solution: engineered to help restore and ensure leak free, reliable exhaust flow when an original equipment exhaust manifold is warped, cracked, or failed
• Trustworthy quality: backed by a team of product experts in the united states and more than a century of automotive experience
• Limited Lifetime Warranty

Specifications

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