Miller 5515 Replacement Coolant Pump for Coolmate Systems

Restore Your Water Cooler's Performance

When your TIG water cooler stops circulating fluid effectively, your entire welding operation can come to a halt. The Miller 5515 Weldcraft Coolant Pump is the factory-original replacement solution for getting your Miller Coolmate system back up and running. Rated for 100 GPH with Clockwise (CW) rotation, this pump is the heart of your cooling system, circulating coolant from the reservoir to the torch head to prevent overheating. A failing pump often manifests as low-flow alarms, overheating cables, or excessive noise; swapping it out with the Miller 5515 resolves these issues immediately.

Designed with the professional welder in mind, this rotary vane pump offers consistent pressure and flow characteristics that are essential for water-cooled TIG and MIG guns. The unit is manufactured to tight tolerances, ensuring a perfect seal and efficient fluid transfer. It is compatible with popular models like the Coolmate 3 and Coolmate 4. The pump's pressure relief valve is factory-set to safe levels for welding equipment, though it is often adjustable if specific pressure tuning is required for long torch leads or specialized setups.

Don't risk burning out expensive water-cooled power cables or torch heads due to inadequate cooling. The Miller 5515 is a direct-fit replacement that requires no modification to your existing cooler housing or motor coupling. Its brass construction ensures resistance to corrosion from coolant additives, while the internal carbon vanes provide self-lubricating properties for smooth operation. Trust in genuine Miller parts to maintain the reliability and safety standards of your welding equipment.

Product Specifications

• Flow Capacity: 100 Gallons Per Hour (nominal).
• Rotation Direction: Clockwise (viewed from the shaft end).
• Material: Brass body with carbon vanes.
• Compatibility: Miller Coolmate 3, Coolmate 4, and compatible systems.