The Chelsea 489XFITX-A3RK is an 8-bolt mechanical/wire-cable shift Power Take-Off from the Chelsea 489 Series, designed to mount directly to the 8-bolt opening on most manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing eliminates the need for an adapter plate, removing a potential leak path. The 489 Series delivers intermittent torque of 201-300 lb-ft and output power of 46-55 HP. Tapered bearings replace needle bearings for increased load capacity. Output is via a 1-1/4" round shaft with key. Part number 489XFITX-A3RK or 489XFITXA3RK.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Mechanical/wire-cable shift operation
Intermittent torque rating: 201-300 lb-ft (301-400 Nm)
Output power: 46-55 HP (34-41 kW)
1-1/4" round keyed output shaft
Tapered bearings for increased load-bearing capability over needle-bearing designs
Internal parts common to the Chelsea 442 Series
Tech Specs
- Series: Chelsea 489
- Mounting Type: 8-Bolt
- Shift Type: Mechanical / Wire-Cable
- Intermittent Torque: 201-300 lb-ft (301-400 Nm)
- Output Power: 46-55 HP (34-41 kW)
- Shaft Power: 24 HP at 500 RPM, 48 HP at 1000 RPM
- Output Shaft Type: 1-1/4" Round Shaft with Key
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube
- Compatible Transmissions: Eaton Fuller, Mack, Tremec (8-bolt manual transmissions)
- Typical Applications: Utility Trucks, Dump Trucks, Snow and Ice Removal, Fire and Rescue
Additional Information
The Chelsea 489 Series offers eleven internal speed ratios and twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Kit-style construction simplifies field service. The integral 8-bolt cast iron housing provides the same torque capacity as the Chelsea 442 Series while eliminating the adapter plate used in traditional multi-piece designs. Internal components are shared with the 442 Series, supporting parts commonality across a fleet. Typical markets include aerial, vocational and municipal equipment, and other mobile applications.Parts Manual: Chelsea 489 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
