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Miller 216257 Replacement Radiator Assembly 8.0 x 18.5

$1,868.02/EA $1,315.38/1 PER EA only $1,315.38/EASave 30%

Usually ships within 3-5 business days

OVERVIEW

Restore Cooling Efficiency with the Miller 216257 Heat Exchanger

Thermal management is a critical aspect of welding machine performance, directly influencing duty cycle capabilities and the longevity of internal power electronics. The Miller 216257 Radiator is a premium replacement heat exchanger engineered to maintain the thermal equilibrium of your Miller welding equipment. With a core size of 8.0" x 18.5", this unit offers a substantial surface area for maximum heat dissipation, ensuring that coolant temperatures remain stable even during prolonged welding operations at high amperages.

Over time, radiators in welding environments can suffer from fin damage, internal clogging from sediment, or leaks due to corrosion and vibration. A compromised heat exchanger reduces the system's ability to shed heat, leading to frequent thermal overload trips and potential damage to the torch or power source. Installing a fresh Miller 216257 restores the system's thermodynamic efficiency. The construction features robust fluid channels and high-density fins designed to optimize airflow and heat transfer, ensuring that your coolant returns to the tank at the appropriate temperature to protect your torch and pump.

This component is an authentic Miller Electric part, meaning it meets the strict quality control specifications of the original equipment. For professional welder repair technicians and shop managers, choosing OEM parts like the 216257 eliminates the guesswork involved in sourcing components. You can trust that the pressure ratings, flow characteristics, and physical dimensions are exactly what the engineering team intended for the machine. This attention to detail ensures that the cooling loop functions correctly, maintaining the necessary flow rate and pressure to prevent torch burnout.

Technical Considerations:

  • Thermal Conductivity: Optimized material selection for rapid heat exchange.
  • Flow Dynamics: Designed to minimize pressure drop across the core while maximizing turbulence for heat transfer.
  • Structural Integrity: Built to endure the mechanical stresses of portable or stationary welding units.

Keep your arc stable and your equipment cool with this essential replacement component.

Additional Information
Brand:Miller
Packaging Description:1 Per Ea
Product Type:Radiator, Heat Exchanger
Dimensions:8.0 in x 18.5 in
Part Number:216257
Compatibility:Miller Welding Equipment

INCLUDED

  • 1 x Miller 216257 Radiator / Heat Exchanger

APPLICATIONS

  • Replacement of damaged or leaking radiators in Miller welding machines.
  • Restoration of cooling systems in engine-driven welders.
  • Maintenance of water-cooling units for TIG and MIG applications.
  • Repair of overheating welding power sources.

FAQ

The radiator measures 8.0 inches by 18.5 inches.

Yes, this is a genuine OEM Miller 216257 Radiator / Heat Exchanger.

You should check the parts manual for your specific Miller machine serial number. Look for part number 216257 in the breakdown.

It acts as a heat exchanger to cool down the liquid coolant circulating through the welding machine or water cooler.

It is not recommended. Generic radiators may not fit the mounting brackets correctly or offer the specific heat dissipation rates required by Miller engineering.

Common signs include visible coolant leaks, physical damage to the fins, or the machine frequently overheating / hitting thermal overload.

No, this item is typically the radiator unit itself. Hoses and clamps are usually sold separately or reused if in good condition.

This is a component for liquid-cooled systems (water coolers or liquid-cooled engines) to dissipate heat from the fluid.