Buy 2021 Mazda CX-5 2.5L SKYACTIV A/T AWD Grand Touring Reserve Sport Utility Engine Coolant Reservoir Tank, TURBO, Expansion - OEM Mazda Part # PX3515355 (PX35-15-355)

Cap. SUB. Reservoir.
A cover that prevents foreign debris from entering the container. Tank. Engine Coolant.

Engine Coolant Reservoir Cap

Fits CX-5

2.5 LITER TURBO. EXPANSION TANK CAP; CX-5; w/Turbo.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 2021 Mazda CX-5 to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.