The Chelsea 489 Series Power Take-Off Assembly, part number 489ZADAX-A5AZ or 489ZADAXA5AZ, bolts 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, reducing potential leak paths. Intermittent torque rating for the 489 Series is 250 lb-ft (339 Nm), matching the capacity of the 442 Series. Shift is wire/cable mechanical. The 1-1/4" round output shaft (with key) is driven by tapered bearings rather than needle bearings for increased load-bearing capability. Output power runs 46-55 HP (31-40 kW), with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Call us to confirm proper fit for your transmission and application.
The Chelsea 489 Series PTO is suited for vocational and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer service. The series offers eleven internal speed ratios and twenty-seven output options, including Chelsea's 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Internal components are shared with the 442 Series, simplifying parts stocking and service. For technical documentation, Parker publishes the 489 Series Parts List (HY25-2442-M1_US) and the 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 available in this series
1-1/4" round output shaft with key, supported by tapered bearings for greater load capacity
Intermittent torque: 250 lb-ft (339 Nm); output power 46-55 HP (31-40 kW)
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; greaseable output options available
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct-mount, one-piece cast iron housing, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical
- INTERMITTENT TORQUE: 250 lb-ft (339 Nm) - Check Application Pages for Actual Torque Ratings
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 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
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube (see model code)
Additional Information
The Chelsea 489 Series PTO is suited for vocational and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer service. The series offers eleven internal speed ratios and twenty-seven output options, including Chelsea's 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Internal components are shared with the 442 Series, simplifying parts stocking and service. For technical documentation, Parker publishes the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
