Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489XFITX-A3RB or 489XFITXA3RB, mounts directly to an 8-bolt transmission 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 common leak path. This unit uses a wire/cable mechanical shift and delivers up to 250 lb-ft intermittent torque, with shaft power rated at 24 HP at 500 RPM and 48 HP at 1000 RPM. The 1-1/4″ round output shaft accepts a key. Strong tapered bearings replace needle bearings for greater load-bearing capability. Internal parts are common to the Chelsea 442 Series, and the kit-style design simplifies service. Call us to confirm proper fit for your application.
Features
8-bolt, one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift; electric over air shift option also available
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); up to 250 lb-ft per series application data
Shaft power: 24 HP at 500 RPM, 48 HP at 1000 RPM
1-1/4″ round output shaft with keyway
Kit-style construction with internal parts common to the Chelsea 442 Series for easier service and parts commonality
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); 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 1000 RPM (18 kW at 500 RPM; 36 kW at 1000 RPM)
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture








