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257891 - Miller Rotor Cooling Fan for Kubota 902 Engine Generator

Packaging: 1 PER EA
$968.54/EA $594.78/1 PER EA only $594.78/EASave 39%

Usually ships within 3-5 business days

OVERVIEW

Protect Your Investment with Genuine Miller Parts

Your engine-driven welder is the heart of your mobile operation, and keeping it cool is non-negotiable. The Miller 257891 Fan, Rotor Gen (Kubota 902) is the authentic replacement fan you need to maintain the health of your machine's generator. Over time, the harsh conditions of job sites—dust, debris, and constant vibration—can take a toll on internal components. If your generator's rotor fan becomes damaged, cracked, or unbalanced, it compromises the cooling airflow to the most expensive part of your welder: the generator coils.

Don't risk downtime or a fried generator by ignoring a damaged fan. This genuine Miller replacement is designed specifically for machines equipped with the robust Kubota 902 engine. It fits perfectly, balances correctly, and moves the exact amount of air needed to keep your duty cycle high and your temperatures low. Generic fans may not fit the rotor hub correctly or might shatter under the stress of daily use, leading to even more extensive damage inside the machine housing.

Installation is straightforward for qualified technicians, restoring your machine to factory specifications. Whether you are performing a major overhaul or a quick repair, using OEM parts like the Miller 257891 ensures that your warranty remains intact and your equipment remains reliable. Keep your cool and keep welding with confidence knowing your power source is protected by the right hardware.

Why Choose OEM?

  • Perfect Fit: No modifications needed; bolts right on.
  • Reliability: Tested materials that last longer.
  • Peace of Mind: Protects your generator from overheating.
Additional Information
Brand:Miller
Packaging Description:1 Per Ea
Compatible Engine:Kubota 902
Part Type:Rotor Fan, Generator Cooling Fan
Material:Composite/Plastic

INCLUDED

  • 1 x Miller 257891 Rotor Generator Fan

APPLICATIONS

  • Replacement of damaged cooling fans on Miller engine-driven welders.
  • Maintenance of generator cooling systems on Kubota 902 powered units.
  • Overhaul of generator rotor assemblies.
  • Repair of overheating welding generators.

FAQ

This fan is designed for Miller welders equipped with the Kubota 902 (D902) engine.

This is the generator rotor fan, responsible for cooling the electrical generator components, not the engine radiator.

You must verify fitment using your machine's serial number. While it fits Kubota 902 models, specific assembly variations exist.

Yes, this is a genuine Miller OEM part, number 257891.

Failure of the rotor fan leads to generator overheating, which can burn out the stator and rotor windings, requiring expensive repairs.

Typically, this part number includes the fan only. You usually reuse existing hardware or order bolts separately if needed.

It is not recommended. OEM fans are balanced and pitched specifically for the RPM and cooling requirements of the Miller generator.

It is made of a durable, heat-resistant composite material designed to withstand the operating environment of an engine drive.