Crossmember

[1] In the automotive industry, this term typically refers to a steel component, often boxed, that is bolted across the underside of a monocoque (unibody) motor vehicle to support the engine and the transmission.

For the suspension of any car to operate correctly, ensuring proper handling and maintaining body panel alignment, the frame must be strong enough to cope with the loads applied to it.

A "K" member is a specific type of crossmember found in vehicles with longitudinally-mounted engines.

Typically, this crossmember is designed in an "Ɪ" section to provide the necessary structural integrity.

In early Ford vehicles, different types of crossmembers were used depending on the model and era.