The Chelsea 489 Series Power Take-Off Assembly, part number 489GAAHX-A3RC or 489GAAHXA3RC, mounts directly to the 8-bolt opening on compatible manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec models. The one-piece cast iron housing bolts on without an adapter plate, which eliminates a potential leak path and reduces installation time. This unit uses a wire/cable mechanical shift and delivers a series intermittent torque rating of 250 lb-ft (339 Nm), with shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft accepts a key. Internal components share commonality with the Chelsea 442 Series, and the unit is built with tapered bearings rather than needle bearings for greater load capacity. Call us to confirm proper fit for your application.
The Chelsea 489 Series is suited for aerial, vocational, municipal, dump truck, utility truck, snow and ice removal, and fire and rescue applications. The 489 Series parts list is documented under Parker reference HY25-2442-M1_US, and the series service manual is HY25-6489-M1/US. For detailed application and speed ratio information, consult the Chelsea 489 Series Sales Literature or the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual available through Parker's Product Support section.
Features
8-bolt one-piece cast iron housing mounts directly to the transmission opening without an adapter plate
Wire/cable mechanical shift; Electric over Air shift option also available in the 489 Series
Series intermittent torque rating: 250 lb-ft (339 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
1-1/4" round output shaft with keyway
Tagered bearings (not needle bearings) for greater load-bearing capability
Kit-style design with internal parts common to the Chelsea 442 Series simplifies 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 with key
- MOUNTING TYPE: 8-Bolt
- PRODUCT SERIES: 489
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO opening
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
Additional Information
The Chelsea 489 Series is suited for aerial, vocational, municipal, dump truck, utility truck, snow and ice removal, and fire and rescue applications. The 489 Series parts list is documented under Parker reference HY25-2442-M1_US, and the series service manual is HY25-6489-M1/US. For detailed application and speed ratio information, consult the Chelsea 489 Series Sales Literature or the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual available through Parker's Product Support section.
