Horton fan drives
RCV250 Fully Variable Fan Drive
The compact, light RCV250 turns larger fans that need more torque. It’s an integrated, belt-driven drive that can be mounted in different places, avoiding the vibration of driveshaft-mounted drives – and its speed varies to match the cooling load.
- fully variablefan speed
- 0wear parts
- DRACdouble-row bearing
- 5conversion kits
The range
Conversion Kits and Specifications
RCV250 Conversion Kits
Convert a pneumatic drive to the dual-speed RCV250 viscous drive. Kits include the drive, fan and wiring loom to run it from the existing solenoid signal.
| Application | Original drive | Conversion kit |
|---|---|---|
| Western Star 4800 / 4900, DD15 | 98A9570-2 / FDMA91506-2S | FCMK91506 |
| Western Star 4800 / 4900, Cummins ISX | 98A9569-2 / FDMA91342-2S | FCMK91342 |
| Freightliner Argosy, DD15 | 98A9779-2 / FDMA91503-2S | FCMK91503 |
| Freightliner Coronado, DD15 | 98A8621-2 / FDMA91504-2S | FCMK91504 |
| Freightliner Argosy, Cummins ISX | 98A9778-2 / FDMA91336-2S | FCMK91336 |
Specifications
| Maximum torque | Up to 2,113 in.-lbs. [250 N-m] (on/off) 1,991 in.-lbs. [225 N-m] (fully variable) |
| Fan blade capacity (diameter) | Configurations of 6 – 13 blades 26 – 43 in. [660 – 1,092 mm] diameter |
| Engine horsepower range | 469 – 671 hp [350 – 500 kW] |
For large off-highway engines, the RCV1000 (up to 900 N·m, 1.2–1.8 m fans) and RCV2000 (up to 2,500 N·m, 1.8–2.7 m fans) fully variable drives are also available.
Why the RCV250
Smooth, Efficient Cooling
Saves Fuel
Variable speed cuts noise and fuel use and helps cold-weather performance.
Low Parasitic Loss
Fast response and low off-speed preserve horsepower.
Durable
Double-row angular contact bearing; no friction liners.
Safe Design
The control harness isn’t exposed, so a broken belt doesn’t mean a new drive.
Literature & related
More Information
- RCV250
Product guide · PDF, 5.9 MB - RCV250 overview
Horton RCV250 sell sheet · PDF, 1.5 MB - Case study: RCV250
Fully variable fan drive in service · PDF, 2.8 MB - Case study: 950,000 km service-free
Horton fan drive in Australian service · PDF, 227 KB
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