Exhaust Manifold Kit – Includes Required Gaskets And Hardware – Dorman (674-497)

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 patent-pending upgraded design features an integrated outer flange that strengthens the sides of the manifold, a thicker inner 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.
EXHAUST MANIFOLD KIT
Exhaust, Manifold, Manifolds
Exhaust Header

Specifications

Vehicle Fitment