235457 - Miller Coolmate 3 Replacement Motor and Pump Assembly 115V

Genuine Miller Replacement Coolant Pump Assembly

The Miller 235457 is a comprehensive Coolant Pump Assembly designed specifically for the maintenance and repair of Miller Coolmate™ series water coolers. This unit is an OEM (Original Equipment Manufacturer) replacement part, ensuring that it meets the exact electrical and mechanical specifications required by Miller welding systems. Operating on standard 115V single-phase power, this assembly integrates both the electric drive motor and the fluid pump mechanism into a single, cohesive unit. This integration simplifies the repair process by eliminating the need to source or align separate motors and pump heads, reducing downtime in industrial environments.

Engineered for reliability, the 235457 assembly is critical for maintaining the thermal equilibrium of water-cooled TIG and MIG torches. The pump is calibrated to deliver the precise flow rate and pressure required to dissipate heat effectively from high-amperage welding torches. Failure to maintain proper coolant circulation can lead to catastrophic torch failure, melted power cables, and compromised weld quality. By utilizing this genuine Miller part, maintenance personnel can ensure that the cooling system operates within the manufacturer's safe operating area, preserving the longevity of the entire welding setup.

This assembly is primarily compatible with the Miller Coolmate 3 and Coolmate 3.5 systems, which are staples in heavy fabrication and manufacturing industries. The construction features durable materials resistant to corrosion when used with approved coolants, such as Miller's low-conductivity antifreeze mixtures. The 115V motor is designed for continuous duty cycles, matching the rigorous demands of professional welding shifts. Installation involves standard electrical connections and plumbing fittings consistent with the Coolmate chassis design.

For industrial MRO (Maintenance, Repair, and Operations) specialists, stocking or sourcing the Miller 235457 is a proactive step in fleet management. It addresses common failure modes such as motor burnout or pump vane wear, providing a drop-in solution that restores the equipment to factory performance levels without the need for extensive modifications or third-party adaptations.