Shop OEM Honda Part # 1J101R9S003 (1J101-R9S-003). Engine Coolant Reservoir. BATTERY COOLING, W/HYBRID. Engine Coolant Expansion Tank - Repair or Replace A failed expansion tank can

Engine Coolant Reservoir. Reserve tank. TANK, Filler.
A container that holds Engine Coolant.

Engine Coolant Reservoir

Fits RLX

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