Buy 2012 Toyota Tacoma Base Standard Cab Pickup Fleetside Engine Coolant Reservoir Cap. 2.4 LITER. 3.3 LITER, Tank, Expansion - OEM Toyota Part # 1640520090 (16405-20090)

Cap SUB - Assembly, RESERV. Cap, Tank. Engine Coolant Reservoir Cap.
A cover that prevents foreign debris from entering the container. Included with: Reservoir.

Engine Coolant Reservoir Cap

Fits Highlander

2.4 LITER. 3.3 LITER.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 2012 Toyota Tacoma to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.