Buy 1991 Mazda B2600 LE-5 Extended Cab Pickup Fleetside Radiator. Cap. Reservoir. Engine Coolant. Cooling, Expansion - OEM Mazda Part # YF4715205 (YF47-15-205)

A cover that prevents foreign debris from entering the container. From 12/01/03. Location-Reservoir. Radiator Cap. To 03/05/2005. Included with: Radiator assembly, Reservoir assembly.

Radiator CapEngine Coolant Reservoir Cap

Fits MIATA, MPV

2002-06.
Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your 1991 Mazda B2600 to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.