XP1 - XP2 - XP3 - XP4
ENGINE :All internally lubricated engine parts including: pistons, piston rings, piston pins, crankshaft, main bearings, thrust bearings/ shims, connecting rods, connecting rod bearings, camshaft, camshaft bearings, balance shaft, balance shaft bearings, timing chain or belt, timing gears, tensioners / guides, intake and exhaust valves, valve springs, replaceable valve guides, push rods, rocker arms, rocker arm shafts, cam followers, lash adjusters, lifters, oil pump, oil pump housing, oil pump pressure relief valve and spring; water pump; harmonic balancer; crankshaft pulley; flexplate; valve covers; timing gear cover; oil pan; oil dipstick; engine block and heads are covered if damaged by the failure of an internally lubricated moving part.
DIESEL - diesel injection pump, injectors and vacuum pump.
ROTARY - rotary chamber, rotor and main bearings.
HYBRID/ELECTRIC - Hybrid control unit(s) including inverter; stator and rotor, battery sensors, cooling fan, cooling duct(s), high voltage harness and junction box, electric drive motor(s).
XP3 - XP4
ENHANCED ENGINE: Intake manifold(s); exhaust manifold(s); air filter housing; vacuum pump.