The Chelsea 489 Series Power Take-Off Assembly, part number 489XFAHX-A3XX or 489XFAHXA3XX, 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 need for an adapter plate, reducing potential leak paths and mounting time. Shift type is wire/cable mechanical. Output shaft is a 1-1/4" round (with key option). The 489 Series delivers the same intermittent torque capacity as the 442 Series at 250 lb-ft (339 Nm), with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Tapered bearings replace 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, and other mobile equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer operations. Twenty-seven output options are available across the series, including Chelsea's 360-degree rotatable flange. Eleven internal speed ratios and shift options are offered within the 489 Series lineup.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening - no adapter plate required
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque capacity: 250 lb-ft (339 Nm) - same rating as Chelsea 442 Series
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 servicing
Greaseable output options available to reduce pump shaft 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, 1-1/4" Round with Key
- 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 at 500 RPM, 48 HP at 1,000 RPM / 18 kW at 500 RPM, 36 kW at 1,000 RPM
- 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, municipal, and other mobile equipment applications including utility trucks, snow and ice removal, fire and rescue, and dump truck and trailer operations. Twenty-seven output options are available across the series, including Chelsea's 360-degree rotatable flange. Eleven internal speed ratios and shift options are offered within the 489 Series lineup.
