SKP SK603386 Engine Coolant Reservoir - Front

Engine Coolant Reservoir for Chevrolet Sonic

Restore proper coolant storage and level control with the SKP Engine Coolant Reservoir, part number SK603386. This replacement reservoir is built for Chevrolet Sonic applications and is engineered to match OE fit and function for dependable cooling system service.

Key Features

• Durable, heat-resistant construction for engine bay use
• Translucent body with clear level markings for quick coolant checks
• Helps maintain a sealed, pressurized cooling system
• OE-style fit for straightforward installation
• Direct replacement for SK603386 applications

Product Details

The SKP SK603386 engine coolant reservoir stores excess coolant as the system expands and returns fluid as temperatures change. It is built to meet or exceed original equipment specifications, helping maintain stable coolant volume and reducing the risk of leaks or low-fluid conditions. Compatible With 2012-2019 Chevrolet Sonic, front, and 2020 Chevrolet Sonic, N/A. This part cross-references Dorman - OE Solutions 603-386 for the same application.

Common Cooling System Issues

• Cracked or leaking coolant reservoir
• Low coolant level from reservoir seepage
• Difficulty checking coolant level through a damaged tank
• Loss of cooling system pressure
• Replacement needed after heat-related plastic fatigue

Installation Notes

Verify the reservoir shape, hose connections, and mounting points against the original unit before installation. Transfer any reusable sensors or caps from the existing assembly if required by your vehicle configuration. After installation, refill the cooling system with the correct coolant type and bleed air from the system according to factory service procedures.

Quality Assurance

SKP manufactures this coolant reservoir to OE specifications for fit and function on Chevrolet Sonic models. Part number SK603386 is intended as a direct replacement for the listed applications.