The Chelsea 489 Series Power Take-Off Assembly, part number 489GQAHX-V3GF or 489GQAHXV3GF, mounts directly to an 8-bolt transmission opening on most manual transmissions, including Eaton/Fuller, Volvo/Mack, and Tremec units, eliminating the need for an adapter plate and its associated leak paths. The one-piece cast iron housing delivers the same intermittent torque capacity as the Chelsea 442 Series, with the 489 Series rated at 201-300 lb-ft (301-400 Nm) intermittent. The output shaft is a 1-1/4" round configuration with key. Shift is accomplished via wire/cable mechanical actuation. Shaft power output runs 24 HP at 500 RPM and 48 HP at 1000 RPM. Strong tapered bearings replace needle bearings for greater load-bearing capability. Call us to confirm proper fit for your application.

The Chelsea 489 Series is suited for aerial, vocational, and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer service. The kit-style construction means common replacement parts are shared with the 442 Series, keeping your parts inventory efficient. Twenty-seven output options and eleven internal speed ratios are available across the 489 Series, making it adaptable to a wide range of hydraulic pump and accessory drive configurations. Consult the 489 Series Parts List (HY25-2442-M1_US) or the Chelsea Service Manual (HY25-6489-M1/US) for full rebuild and application details. Not sure this is your part? Give us a call.
Features
8-bolt direct-mount cast iron housing fits most manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec - no adapter plate required
Wire/cable mechanical shift with electric-over-air shift option available in the 489 Series
1-1/4" round output shaft with key; greaseable output options to reduce pump shaft spline fretting and corrosion
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1000 RPM
Kit-style design with internal parts common to the Chelsea 442 Series simplifies service and parts sourcing
Tapered bearings replace needle bearings for greater radial load capacity
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4" Round with Key
- OUTPUT POWER: 46-55 HP (31-40 kW)
- SHAFT POWER: 24 HP (500 RPM), 48 HP (1000 RPM) / 18 kW (500 RPM), 36 kW (1000 RPM)
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm) - Check Application Pages for Actual Torque Ratings
- CONTINUOUS TORQUE: De-rate intermittent torque rating 30% - Check Application Pages for Actual Torque Ratings
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, 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, and municipal equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer service. The kit-style construction means common replacement parts are shared with the 442 Series, keeping your parts inventory efficient. Twenty-seven output options and eleven internal speed ratios are available across the 489 Series, making it adaptable to a wide range of hydraulic pump and accessory drive configurations. Consult the 489 Series Parts List (HY25-2442-M1_US) or the Chelsea Service Manual (HY25-6489-M1/US) for full rebuild and application details. Not sure this is your part? Give us a call.
