Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489XFAHX-T3XQ or 489XFAHXT3XQ, mounts directly to an 8-bolt transmission opening on most manual transmissions including Eaton Fuller, Volvo/Mack, and Tremec. The one-piece cast iron housing eliminates the adapter plate found on some designs, reducing potential leak paths. Wire/cable mechanical shift is standard on this unit. The 1-1/4″ round output shaft with key supports intermittent torque ratings in the 201-300 lb-ft range. Internal parts are common to the Chelsea 442 Series, and greaseable output options help protect the shaft spline against fretting and corrosion. Call us to confirm proper fit for your specific transmission and application.
Features
489 Series, 8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift with electric-over-air shift option available
1-1/4″ round output shaft with key
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1000 RPM
Internal parts common to Chelsea 442 Series simplify service and parts sourcing
Greaseable output options reduce spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4″ Round with Key
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm)
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 24 HP at 500 RPM, 48 HP at 1000 RPM (18 kW at 500 RPM, 36 kW at 1000 RPM)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
Additional Information
The Chelsea 489 Series is designed for aerial, vocational, and municipal equipment applications including utility trucks, snow and ice removal, dump trucks, and fire and rescue vehicles. The series offers 27 output options and 11 internal speed ratios, including a 360-degree rotatable flange. Tapered bearings replace needle bearings for greater load-bearing capability. Kit-style construction makes field service straightforward, with internal components shared across the Chelsea 442 Series. A genuine Chelsea part sold by Pro Gear and Transmission.









