The Chelsea 489 Series Power Take-Off Assembly, part number 489ZFDAX-C5RB or 489ZFDAXC5RB, mounts directly to an 8-bolt transmission opening on most manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing eliminates the adapter plate found on some designs, removing a potential leak path. Intermittent torque rating for the 489 Series is 250 lb-ft (339 Nm); for continuous-duty applications, de-rate the torque rating by 30% and confirm against the Chelsea application pages. Shaft power runs 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft ships in a standard or keyed configuration depending on build. Wire/cable mechanical shift is standard on this unit, with an electric-over-air shift option available in the 489 Series. Tapered output bearings replace needle bearings for improved load capacity. Call us to confirm proper fit for your transmission and application.
The 489 Series fits common manual transmission platforms used in utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The 360-degree rotatable flange output option and greaseable shaft are available within the 489 Series to reduce pump shaft spline fretting and corrosion. The 489 Series offers eleven internal speed ratios across its build variants. Internal components are shared with the Chelsea 442 Series, which simplifies parts stocking for shops already running 442 Series PTOs. For detailed parts and service information, refer to Chelsea 489 Series Parts List HY25-2442-M1_US and Service Manual HY25-6489-M1/US.
Features
8-bolt direct-mount cast iron housing, no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option available in the 489 Series
250 lb-ft (339 Nm) intermittent torque capacity, same as the 442 Series
1-1/4" round output shaft, available standard or with key
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Kit-style design with internal parts common to the 442 Series for easier service
Tech Specs
- 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 for actual torque ratings)
- SHIFT TYPE: Wire/Cable Mechanical
- 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)
- OUTPUT SHAFT TYPE: 1-1/4" Round / 1-1/4" Round with Key
- MOUNTING TYPE: 8-Bolt
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
- PRODUCT SERIES: 489
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
Additional Information
The 489 Series fits common manual transmission platforms used in utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The 360-degree rotatable flange output option and greaseable shaft are available within the 489 Series to reduce pump shaft spline fretting and corrosion. The 489 Series offers eleven internal speed ratios across its build variants. Internal components are shared with the Chelsea 442 Series, which simplifies parts stocking for shops already running 442 Series PTOs. For detailed parts and service information, refer to Chelsea 489 Series Parts List HY25-2442-M1_US and Service Manual HY25-6489-M1/US.
