Coolant Overflow Reservoir Tank – 2L Universal Polished Aluminum Expansion Catch Can
Maintain your vehicle's cooling system efficiency with this universal polished aluminum coolant overflow reservoir. The 2-liter (67.63oz) capacity tank captures excess coolant and steam expelled during high engine temperatures, preventing coolant loss and improving radiator heat dissipation. Available in Black and Silver finishes to suit your engine bay aesthetic.
Key Features
2-Liter Capacity – 67.63oz reservoir handles excess coolant from most vehicle cooling systems
Polished Aluminum Construction – Durable, heat-resistant material with a premium finish
Universal Fit – Compatible with Chevy, GMC, Buick, and most vehicle makes and models
Coolant Recovery Function – Expels trapped air and steam to boost radiator cooling efficiency
Two Finish Options – Available in Black and Silver to match your engine bay
Product Specifications
Spec
Detail
Capacity
2L / 67.63oz
Material
Polished Aluminum
Finish
Black / Silver
Fit
Universal
Compatible Brands
Chevy, GMC, Buick, Chevrolet Spark (Universal)
OE Reference
603-955, 95352005
Function
Coolant Overflow, Expansion, Recovery
How It Works
As your engine heats up, coolant expands and overflows from the radiator into this reservoir tank. The tank captures the excess coolant and steam, preventing loss and allowing the coolant to return to the radiator once the engine cools. This cycle improves overall cooling efficiency and protects your engine from overheating.
Ideal Use Scenarios
🚗 Coolant System Repair – Replace a cracked or leaking factory overflow bottle
🏎️ Performance Builds – Upgrade to a polished aluminum tank for a cleaner engine bay look
🔧 Preventive Maintenance – Install as part of a cooling system refresh or overhaul
🚚 Truck & SUV Applications – Universal fit works across Chevy, GMC, and Buick platforms
