Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489XQAHX-A3XR or 489XQAHXA3XR, mounts directly to an 8-bolt transmission opening on most manual transmissions including Eaton/Fuller, Volvo/Mack, and Tremec units. The one-piece cast iron housing eliminates the adapter plate found on earlier designs, reducing both installation time and potential leak paths. Wire/cable mechanical shift actuation is standard on this unit. The 1-1/4″ round output shaft (with key) delivers up to 48 HP at 1,000 RPM and carries an intermittent torque rating of 201-300 lb-ft for the 489 Series. Tapered output bearings replace needle bearings for greater load-bearing capacity. Internal components are common to the Chelsea 442 Series, keeping the parts inventory straightforward for shops already familiar with that platform. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
8-Bolt direct-mount cast iron housing eliminates adapter plate and reduces leak paths
Wire/cable mechanical shift actuation
1-1/4″ round output shaft with key
Intermittent torque rating: 201-300 lb-ft (301-400 Nm) for the 489 Series
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to Chelsea 442 Series for simplified service
Kit-style design simplifies field servicing
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 (18 kW) at 500 RPM; 48 HP (36 kW) at 1,000 RPM
- Lubricant: X = No Pressure Lube; P = Pressure Lube
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, and other 8-bolt manual transmissions









