Intake Manifold Plenum – Mopar (4591863AM)

Intake Manifold Plenum is the intake manifold that feeds air into the cylinder heads. Gasket surfaces and injector bore placement are specific to the engine family, and warping at the flange is the usual cause of a lean code.

Replace the Intake Manifold Plenum when the flange face is warped, when a runner has cracked, or when an injector bore is damaged. Confirm that the gasket surface is flat, or the replacement will leak the same way.

This Intake Manifold Plenum is listed as part 4591863AM (Throttle Bodies & Intake). Where a number has been superseded, the current reference is the one that ships, so check any supersession note before ordering.

The stock here is genuine MOPAR, and this Intake Manifold Plenum keeps the original engineering number, which matters once a number has been superseded more than once.