coolingHeater Core Torque Specsfor 2017 Lexus IS 350 3.5L V6 · RWDUnitslb-ftNm11 fastenersSeqComponentTorqueAngle—Cover Screws9 lb-ft · 12 Nm——Dashboard Screws2 lb-ft · 3 Nm——Drain PetcockHand tight6 lb-ft · 8 Nm——Fan Bolts9 lb-ft · 12 Nm——Heater Core Mounting6 lb-ft · 8 Nm——Heater Hose Clamps2 lb-ft · 3 Nm——Hose ClampsDo not overtighten3 lb-ft · 4 Nm——Housing BoltsCritical12 lb-ft · 16 Nm——Mounting Bolts23 lb-ft · 31 Nm——Pump BoltsCriticalTorque in sequence21 lb-ft · 28 Nm——Thermostat Housing BoltsCritical12 lb-ft · 16 Nm—📝 Suggest a correction to this torque spec