Timing Chain Housing & Cover
WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
The timing chain housing is die cast aluminum. The housing assembly includes the oil fill location. The timing chain cover is laminated stamped steel and retains the crankshaft front seal.