Buy 2017 Lexus GS 350 CAP SUB-ASSEMBLY, RESERVE TANK. Engine Coolant Expansion Tank - Repair or Engine, Expansion, Cause - OEM Lexus Part # 1640531050 (16405-31050)

CAP SUB-ASSY, RESERVE TANK

Fits GS 350

Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 2017 Lexus GS 350 to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.