Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489XUAHX-A3RB or 489XUAHXA3RB, mounts directly to an 8-bolt transmission opening on compatible manual transmissions including Eaton Fuller, Mack, and Tremec applications. The one-piece cast iron housing eliminates the need for an adapter plate, removing a potential leak path. Output is through a 1-1/4″ round shaft with key. Shift is wire/cable mechanical. The 489 Series shares internal parts with the Chelsea 442 Series, and the kit-style design simplifies service. Output power for the series runs 24 HP at 500 RPM and 48 HP at 1,000 RPM. Intermittent torque rating for the series is 201-300 lb-ft; check Chelsea application pages for the exact rating for your configuration. Call us to confirm proper fit for your transmission.
Features
489 Series one-piece cast iron housing bolts directly to 8-bolt transmission opening, no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option available within the 489 Series
Output shaft: 1-1/4″ round with key
Series intermittent torque rating: 201-300 lb-ft (check application pages for configuration-specific values)
Shaft power output: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Kit-style design with internal parts common to the Chelsea 442 Series; greaseable output options
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
- OUTPUT POWER: 46-55 HP / 31-40 kW
- SHAFT POWER: 24 HP (18 kW) at 500 RPM; 48 HP (36 kW) at 1,000 RPM
- INTERMITTENT TORQUE (SERIES): 201-300 lb-ft / 301-400 Nm (check application pages for actual torque rating for this configuration)
- CONTINUOUS TORQUE: De-rate intermittent torque rating 30% (check application pages)
- TRANSMISSION COMPATIBILITY: Eaton Fuller, Mack, Volvo, Tremec, and other 8-bolt manual transmissions
- LUBRICANT TYPE: X = No Pressure Lube; P = Pressure Lube









