I have been looking at getting a used Lexus GX470 and came up with a list of parts to help with my decision.

Description Interval Part Number Parts Cost
Oil Every 5,000 miles 6.6 quarts 5W-30 $55.94
Oil Filter Every 5,000 miles 90915-YZZD3 $5.97
Transmission Fluid Every 50,000 miles    
Transmission Filter Every 50,000 miles 3533060050 $77.48
Cabin Air Filter Every 15,000 miles 8713906030 $29.99
Engine Air Filter Every 30,000 miles 1780150040 $30.99
Spark Plugs Every 120,000 miles 9008091180 $98.56
Timing Belt Every 90,000 miles 1356809070 $82.37
Water Pump Every 90,000 miles 1610009201 $183.92
Water Pump Gasket Every 90,000 miles 162710F010 $11.30
Brake Pads (Front) Every 60,000 miles 0446535290 $104.50
Brake Pads (Rear) Every 60,000 miles 0446660090 $72.48
Brake Rotor (Front) Every 120,000 miles 4351260151 $91.04
Brake Rotor (Rear) Every 120,000 miles 4243160201 $113.99

Coolant

Coil Pack

Differential Fluid