Duramax LLY – INTAKE MANIFOLD – Service

A three-piece intake manifold is used on turbocharged diesel engines (Figure 2-49). It consists of left and right manifold halves and a center manifold. The center manifold joins the other manifold halves to the turbocharger.

Gaskets and an O-ring seal are required at the manifold-to-cylinder head and manifold joints. A single O-ring is used to seal the center manifold-to-turbocharger flange joint.