Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489XCAHX-V3GB or 489XCAHXV3GB, mounts directly to an 8-bolt transmission opening on most manual transmissions including Eaton Fuller, Volvo, and Mack without an adapter plate, eliminating a common leak path. The one-piece cast iron housing delivers intermittent torque in the 201-300 lb-ft (301-400 Nm) range – the series is rated at 250 lb-ft, matching the Chelsea 442 Series capacity. This unit uses a wire/cable mechanical shift and a 1-1/4″ round output shaft with key. Shaft power is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Strong tapered bearings replace needle bearings for greater load-bearing capability. Call us to confirm proper fit for your transmission and application.
Features
8-bolt direct-mount cast iron housing fits most manual transmissions including Eaton Fuller, Volvo, and Mack – no adapter plate required
Wire/cable mechanical shift; electric-over-air shift option also available
1-1/4″ round output shaft with key; greaseable output options to reduce spline fretting and corrosion
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM; output power 46-55 HP (31-40 kW)
Tapered bearings instead of needle bearings for greater load capacity
Kit-style design with internal parts common to the Chelsea 442 Series simplifies servicing
Tech Specs
- INTERMITTENT TORQUE: 201-300 lb-ft (301-400 Nm); series-rated at 250 lb-ft (339 Nm) – check application pages for actual torque ratings
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 30% – check application pages for actual torque ratings
- SHIFT TYPE: Wire/Cable Mechanical
- 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 with key
- MOUNTING TYPE: 8-Bolt
- TRANSMISSION FITMENT: Eaton/Fuller, Volvo/Mack, and other manual transmissions with 8-bolt PTO opening
- PRODUCT SERIES: 489
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
Additional Information
The Chelsea 489 Series is built for aerial equipment, vocational and municipal trucks, utility trucks, dump trucks, and snow and ice removal vehicles. The series offers eleven internal speed ratios, twenty-seven output options, and a 360-degree rotatable flange option. For service documentation, Parker publishes the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US) through their Product Support section.









