SKP SK603500 Engine Coolant Reservoir - Front

Engine Coolant Reservoir for Mazda 626

SKP SK603500 is an engine coolant reservoir for the front cooling system on 1998-2002 Mazda 626 models. It is built to store and monitor coolant level while supporting a sealed, pressurized cooling system.

• Fits 1998-2002 Mazda 626, front
• Translucent reservoir body for quick fluid-level checks
• Clear level markings for easier inspection
• Heat-resistant construction for engine bay use
• OE-style fitment for straightforward replacement

Product Details

This SKP coolant reservoir is engineered to meet or exceed OE specifications for the Mazda 626 cooling system. Part number SK603500 is designed as a direct replacement for the original expansion tank, helping maintain proper coolant storage and pressure control. This part cross-references Dorman OE Solutions 603-500 for the same application.

Common Cooling System Issues

• Cracked or brittle coolant reservoir housing
• Coolant leaks from the expansion tank
• Low coolant level warnings caused by reservoir failure
• Difficulty checking coolant level through a damaged tank
• Loss of cooling system pressure from a worn reservoir

Installation Notes

Verify front-position fitment for your 1998-2002 Mazda 626 before installation. Transfer any vehicle-specific connections or sensors from the original reservoir if required by the application, and inspect hoses, caps, and clamps for wear while the cooling system is open. After installation, refill and bleed the system according to factory service procedures.

Quality Assurance

SKP manufactures this reservoir from durable, heat-resistant materials and designs it to OE specifications for proper fit and function. Part number SK603500 is intended for dependable replacement service on the Mazda 626 cooling system.