All internal lubricated parts
Engine block (excluding freeze plugs)
Cylinder heads
Harmonic balancer
Manifold(s): exhaust/intake (excluding catalytic converters)
Oil pan (excluding drain plug related failures)
Oil pump
Flywheel/flexplate
Timing belt/chain, gear, cover and tensioner
Manufacturer-installed turbocharger(s)
Manufacturer-installed supercharger
Valve covers