Description
The Chelsea 489XWITX-W3XD or 489XWITXW3XD is a 489 Series Power Take-Off Assembly built for 8-bolt manual transmission openings on Eaton/Fuller, Volvo/Mack, and Tremec applications. The one-piece cast iron housing bolts directly to the transmission without an adapter plate, removing a potential leak path. This unit delivers up to 250 lb-ft intermittent torque and shares internal parts with the 442 Series. Shift actuation is wire/cable mechanical. Output shaft is a 1-1/4″ round with key. At 500 RPM the shaft delivers 24 HP; at 1,000 RPM, 48 HP. Tapered bearings replace needle bearings for increased load-bearing capability. Pro Gear and Transmission stocks genuine Chelsea PTOs – call us to confirm fit for your transmission.
Features
8-bolt integral cast iron housing mounts directly to transmission – no adapter plate required
Wire/cable mechanical shift actuation
1-1/4″ round output shaft with key
Intermittent torque rating: 250 lb-ft (339 Nm) – check application pages for actual rating
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series; kit-style design simplifies service
Greaseable output options available; tapered bearings for greater load capacity
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (integral cast iron housing, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4″ Round with Key
- INTERMITTENT TORQUE: 250 lb-ft / 339 Nm (check application pages for actual torque ratings)
- CONTINUOUS TORQUE: De-rate torque rating 30% (check application pages for actual torque ratings)
- OUTPUT POWER: 46-55 HP / 31-40 kW
- SHAFT POWER: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
