Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489XXAHX-A5XD or 489XXAHXA5XD, is a wire/cable mechanical shift PTO built for 8-bolt transmission openings. The one-piece cast iron housing mounts directly to the 8-bolt aperture on compatible manual transmissions including Eaton Fuller, Volvo/Mack, and Tremec, eliminating the need for an adapter plate and removing a potential leak path. The 489 Series carries an intermittent torque rating of 201-300 lb-ft (301-400 Nm) and delivers up to 48 HP at 1,000 RPM through a 1-1/4″ round output shaft. Strong tapered bearings replace needle bearings for greater load-carrying capability. Internal parts share commonality with the Chelsea 442 Series. Call us to confirm proper fit for your application.
Features
8-bolt one-piece cast iron housing mounts directly to transmission without an adapter plate
Wire/cable mechanical shift with electric-over-air shift option available in the 489 Series
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); shaft output up to 48 HP at 1,000 RPM
1-1/4″ round output shaft; greaseable output options reduce spline fretting and corrosion
Kit-style design with internal parts common to the Chelsea 442 Series simplifies service
Fits Eaton Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct-mount, one-piece cast iron housing, no adapter plate required)
- SHIFT TYPE: Wire/Cable Mechanical
- INTERMITTENT TORQUE: 201-300 lb-ft / 301-400 Nm (check application pages for actual torque ratings)
- OUTPUT POWER: 46-55 HP / 31-40 kW
- SHAFT POWER: 24 HP (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- OUTPUT SHAFT TYPE: 1-1/4″ Round / 1-1/4″ Round with key
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
- TRANSMISSION MANUFACTURER COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture








