Description
The Chelsea 489XHAHX-A3XR or 489XHAHXA3XR is a Series 489 power take-off assembly designed for Eaton/Fuller, Volvo/Mack, and select other transmissions. It mounts via an 8-bolt pattern and uses a wire/cable mechanical shift mechanism. The 1-1/4″ round output shaft (keyway available) delivers up to 48 HP at 1,000 RPM, with intermittent torque rated at 250 lb-ft (339 Nm). This unit carries the “X” lubricant designation, meaning no pressure lube is required. Internal components are common to the Chelsea 442 Series, simplifying parts sourcing. The kit-style design makes field service straightforward. Call us to confirm proper fit for your specific transmission.
Features
8-bolt mounting pattern for Eaton/Fuller, Volvo/Mack, and other compatible transmissions
Wire/cable mechanical shift mechanism
1-1/4″ round output shaft with keyway option available
Intermittent torque: 250 lb-ft (339 Nm); shaft power up to 48 HP at 1,000 RPM
No pressure lubrication required (X-series lubricant designation)
Kit-style construction shares internal parts with the Chelsea 442 Series for easier servicing
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4″ Round / 1-1/4″ Round with Key
- INTERMITTENT TORQUE: 250 lb-ft (339 Nm) – Check Application Pages for Actual Torque Ratings
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 500 RPM: 24 HP (18 kW) / 1,000 RPM: 48 HP (36 kW)
- TRANSMISSION MANUFACTURER: Eaton/Fuller, Volvo/Mack, Other
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube









