Description
Chelsea 489 Series Power Take-Off Assembly, part number 489XHAHX-A5RA or 489XHAHXA5RA, mounts directly to the 8-bolt transmission opening on most manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec without an adapter plate. The one-piece cast iron housing eliminates the adapter plate leak path while delivering the same intermittent torque capacity as the 442 Series. Output shaft is a 1-1/4″ round with key. Shift is wire/cable mechanical. Output power runs 46-55 HP, with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 489 Series uses tapered bearings rather than needle bearings for greater load-bearing capability. Compatible with applications including utility trucks, dump trucks, and vocational equipment. Call us to confirm proper fit for your specific transmission and application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift; electric over air shift option also available
1-1/4″ round output shaft with key; greaseable output options available
Intermittent torque capacity: 201-300 lb-ft (301-400 Nm) series rating
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Kit-style design with internal parts common to the Chelsea 442 Series for easier 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
- 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: 201-300 lb-ft (301-400 Nm) – check application pages for actual torque ratings
- CONTINUOUS TORQUE: De-rate torque rating 30% – check application pages for actual torque ratings
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube (per part number suffix)
- DIMENSIONS (H x W x L): 8.38″ x 10.38″ x 14.25″








