Intake Manifold O-Ring is a sealing ring for the intake manifold of the 2.5L KV6 V6 petrol engine.

It seals the joint between the manifold and its mating face, maintaining an airtight induction path so the engine draws its charge air without unmetered leaks. Renewing the O-ring whenever the manifold is disturbed prevents air leaks that upset idle quality and fuelling.