The Chelsea 489 Series Power Take-Off Assembly, part number 489XFAHX-A5GF or 489XFAHXA5GF, is a wire/cable mechanical shift PTO built for manual transmissions with an 8-bolt mounting aperture, including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing bolts directly to the transmission opening, eliminating the adapter plate found on earlier designs and reducing potential leak paths. Intermittent torque capacity matches the Chelsea 442 Series at 250 lb-ft (339 Nm); for continuous-duty applications, de-rate 30% and confirm with the Chelsea application guide. The 1-1/4" round output shaft supports both plain and keyed configurations. Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 489 Series also supports an electric-over-air shift option. Call us to confirm proper fit for your specific transmission.
The Chelsea 489 Series PTO is suited for utility trucks, dump truck and trailer applications, snow and ice removal, fire and rescue, and aerial equipment. Eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange, give this unit broad versatility across vocational and municipal equipment. Internal components are common with the Chelsea 442 Series, which simplifies parts inventory for fleets running both models. For full parts list and service manual information, refer to Parker document 489 Series Parts List HY25-2442-M1_US and Chelsea Service Manual HY25-6489-M1/US.
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, available with or without keyway
Intermittent torque capacity 250 lb-ft (339 Nm), matching the Chelsea 442 Series
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Kit-style design with internal parts common to the 442 Series simplifies service and parts sourcing
Greaseable output options to reduce pump shaft spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct to transmission, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical; Electric over Air option available
- 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
- CONTINUOUS TORQUE: De-rate intermittent rating 30% - Check Application Pages for Actual Torque Ratings
- 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
- TRANSMISSION COMPATIBILITY: Eaton Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
Additional Information
The Chelsea 489 Series PTO is suited for utility trucks, dump truck and trailer applications, snow and ice removal, fire and rescue, and aerial equipment. Eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange, give this unit broad versatility across vocational and municipal equipment. Internal components are common with the Chelsea 442 Series, which simplifies parts inventory for fleets running both models. For full parts list and service manual information, refer to Parker document 489 Series Parts List HY25-2442-M1_US and Chelsea Service Manual HY25-6489-M1/US.
