Description
The Chelsea 489XCAHX-A3RB or 489XCAHXA3RB is an 8-bolt mechanical shift power take-off from the Chelsea 489 Series, designed to bolt directly to manual transmissions with an 8-bolt aperture, including Eaton Fuller, Volvo, Mack, and other compatible units. The one-piece cast iron housing eliminates the need for an adapter plate, removing a common leak path. This unit delivers up to 250 lb-ft intermittent torque and shaft power of 24 HP at 500 RPM, scaling to 48 HP at 1,000 RPM. The output shaft is a 1-1/4″ round with key, and shift is wire/cable mechanical. Internal parts are common to the Chelsea 442 Series, making service straightforward. Call us to confirm proper fit for your application.
Features
489 Series, 8-bolt direct-mount cast iron housing, no adapter plate required
Wire/cable mechanical shift; Electric over Air shift option available
1-1/4″ round output shaft with key
Intermittent torque rating: 250 lb-ft (339 Nm) per application pages
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series; kit-style design for easy servicing
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct-mount, 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 intermittent rating by 30% (check application pages)
- 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, and other manual transmissions with 8-bolt aperture
- LUBRICATION: X = No Pressure Lube; P = Pressure Lube (per model code)
- DIMENSIONS: 8.38″ H x 10.38″ W x 14.25″ L








