Description
The Chelsea 489XRITX-A3RA or 489XRITXA3RA is a 489 Series power take-off assembly built around a one-piece cast iron housing that bolts directly to an 8-bolt transmission opening on Eaton Fuller, Mack, Tremec, and compatible manual transmissions. The series carries an intermittent torque rating of 201-300 lb-ft (301-400 Nm), and shaft power output reaches 24 HP at 500 RPM and 48 HP at 1,000 RPM. The output shaft is a 1-1/4″ round with key. Shift is accomplished via wire/cable mechanical actuation, with an electric-over-air shift option also available within the series. The kit-style design shares internal components with the Chelsea 442 Series, making service straightforward. Call us to confirm proper fit for your transmission.
Features
8-bolt one-piece cast iron housing mounts directly to compatible manual transmissions, eliminating the need for an adapter plate
Wire/cable mechanical shift; electric-over-air shift option available within the 489 Series
1-1/4″ round output shaft with key
Series intermittent torque rating: 201-300 lb-ft (301-400 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Kit-style construction with internal parts common to the Chelsea 442 Series simplifies 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 with Key
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm)
- SHAFT POWER: 24 HP at 500 RPM / 48 HP at 1,000 RPM (18 kW at 500 RPM / 36 kW at 1,000 RPM)
- OUTPUT POWER: 46-55 HP (31-40 kW)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO opening
- LUBRICANT TYPE: X = No Pressure Lube; P = Pressure Lube








