Description
The Chelsea 489XFAHX-P3RA or 489XFAHXP3RA is an 8-bolt Power Take-Off assembly from the 489 Series, designed for manual transmissions including Eaton Fuller, Mack, and Tremec. The one-piece cast iron housing mounts directly to the 8-bolt transmission opening, eliminating the adapter plate and reducing potential leak paths. This unit delivers the same 250 lb-ft intermittent torque capacity as the 442 Series, with a 1-1/4″ round output shaft with key. Shift is accomplished via wire/cable mechanical actuation. Pressure lube is specified by the P designation in this part number. Internal parts are common to the 442 Series, simplifying service. A genuine Chelsea part sold by Pro Gear and Transmission. 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 actuation
1-1/4″ round output shaft with key
Pressure lubrication (P designation) for this configuration
Intermittent torque capacity of 250 lb-ft (339 Nm); shaft power of 24 HP at 500 RPM and 48 HP at 1,000 RPM
Kit-style construction with internal parts common to the Chelsea 442 Series for easier service
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct-mount, no adapter plate)
- SHIFT TYPE: Wire/Cable Mechanical
- OUTPUT SHAFT TYPE: 1-1/4″ Round with Key
- LUBRICATION: Pressure Lube (P designation)
- INTERMITTENT TORQUE: 250 lb-ft (339 Nm) – Check Application Pages for Actual Torque Ratings
- CONTINUOUS TORQUE: De-rate intermittent rating by 30% – Check Application Pages for Actual Torque Ratings
- 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
- COMPATIBLE TRANSMISSIONS: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture









