The Chelsea 489GFAHX-A5AF or 489GFAHXA5AF is an 8-bolt Power Take-Off assembly from Chelsea's 489 Series, designed to bolt directly to manual transmissions including Eaton/Fuller, Mack, and Tremec without an adapter plate. The one-piece cast iron housing eliminates a common leak path. This unit shifts via wire/cable mechanical actuation and delivers up to 250 lb-ft intermittent torque with shaft power rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. The 1-1/4" round output shaft accepts a key. Tapered bearings replace needle bearings for improved load capacity. Internal parts share commonality with the Chelsea 442 Series, simplifying rebuild and service. Call Pro Gear and Transmission to confirm proper fit for your application.
Features
8-Bolt one-piece cast iron housing mounts directly to manual transmission openings on Eaton/Fuller, Mack, and Tremec without an adapter plate
Wire/cable mechanical shift actuation
1-1/4" round output shaft with keyway
Intermittent torque rating: 250 lb-ft (339 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered bearings for greater load capacity compared to needle-bearing designs
Kit-style construction shares internal parts with the Chelsea 442 Series for straightforward servicing
Greaseable output shaft option reduces 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
- 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
- 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
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO aperture
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
Additional Information
