Black 2L Radiator Coolant Overflow Water Bottle Expansion Reservoir Tank +Cap

2L Coolant Overflow Reservoir Tank with Cap

This 2L radiator coolant overflow water bottle is an expansion reservoir tank that captures expanding coolant and returns it to the radiator as the system cools, helping keep the cooling loop topped off.

Overview

The 2L coolant overflow reservoir tank gives expanding coolant a place to go instead of spilling onto the road, then feeds it back as temperatures drop. This radiator overflow water bottle suits drivers replacing a cracked or missing tank on a daily driver, work truck, or project build. The included cap seals the reservoir so the recovery cycle works as intended.

Built For Performance

• 2 liter capacity holds a useful volume of expanding coolant
• Black finish resists discoloration from heat and coolant contact
• Matching cap included for a complete, sealed reservoir
• Single-piece tank body with molded inlet for hose routing
• Compact footprint fits tight engine bay mounting spots

On-The-Job Use

• Daily drivers and commuter vehicles needing coolant recovery
• Work trucks and vans that see heavy stop-and-go duty
• Project builds where the factory bottle is cracked or brittle

Specs At A Glance

Good To Know

Q: Does this tank come with a cap? A: Yes, a matching cap is included with the reservoir so the tank arrives ready to mount and connect. Q: How do I know if my vehicle needs an overflow tank? A: If the radiator has no recovery bottle and coolant is pushed out as the engine warms, a recovery reservoir like this one restores the closed-loop cycle.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.