Buy 2006 Lexus GX 470 Engine Coolant Reservoir Cap. Engine Coolant Expansion Tank - Repair or Replace Cause, Cooling, System - OEM Lexus Part # 1640550051 (16405-50051, 1640550050)

RADIATOR RESERVE TANK; RESERVE TANK.

CAP SUB-ASSY, RESERVE TANK CAP SUB-ASSY, RADIATOR RESERVE TANK

Fits GX 460, GX 470

Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 2006 Lexus GX 470 to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.