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Quieter Starts. Zero Fits.

Horton's newest variable-speed fan drives feature a proprietary technology called Cold-Start Disengagement™. This latest wave of airflow solutions helps meet emissions regulations, reduces fan noise, and allows heavy-duty engines to operate at peak performance -- no matter the conditions.

What is cold-start disengagement?

Cold-Start Disengagement can help trucks and tractors warm up quicker during cold weather. Horton's viscous drives with CSD hold oil in the reservoir while the engine is off, so the fan disengages up to 80 percent faster than standard viscous drives.


Typical fan clutch without CSD

a typical viscous fan clutch

Horton fan clutch with CSD

Horton fan clutch with cold-start disengagement

Better for the planet. And the bottom line.

Cold-Start Disengagement:

  • Helps meet emissions regulations
  • Reduces noise during start-up
  • Is ideal for all on-highway truck applications
  • Allows rapid engine warmup in cold weather


Heavy-Duty Trucks (overnight)

Heavy-Duty Trucks (day cab)

Refuse Vehicles

Agricultural Tractors


Specialty On-Highway Vehicles




LCX230 Fan Drive

A durable, live-center fan drive that also includes industry-leading low-speed controllability and lower off speeds, specifically engineered for heavy-duty trucks.

More Info

LCX170 Fan Drive

The most technologically advanced Horton fan drive yet. The LCX170 is tailored to the exact cooling needs of medium-duty vehicles.

More Info

Learn more about Cold-Start Disengagement and the LCX Series

How can CSD benefit your application?

Share your vision with us, and a Horton application engineer will be in touch.