Buy OEM 1986 Mazda Part # LFG115350C. Engine Coolant Reservoir (Right). Miata MX5. Engine Coolant Expansion Tank - Repair or Replace A failed expansion tank can cause the

Reservoir. SUB.
A container that holds engine coolant. Includes: Reservoir Cap. Engine Coolant. Tank, - Radiator.

Engine Coolant Reservoir

Fits MX-5 Miata

Miata MX5.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 1986 Mazda to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.