The Chelsea 489 Series Power Take-Off Assembly, part number 489XFAHX-X3AF or 489XFAHXX3AF, mounts directly to 8-bolt manual transmission openings on Eaton/Fuller, Mack, Tremec, and compatible gearboxes, no adapter plate required. The one-piece cast iron housing delivers the same intermittent torque capacity as the 442 Series (201-300 lb-ft / 301-400 Nm) and uses tapered bearings rather than needle bearings for greater load-bearing capability. This unit shifts via wire/cable mechanical actuation and features a 1-1/4" round output shaft with key. Shaft power output is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM. Call us to confirm proper fit for your transmission and application.
The Chelsea 489 Series is suited for aerial, vocational and municipal equipment, utility trucks, snow and ice removal, fire and rescue, and dump truck applications. The greaseable output shaft option helps reduce spline fretting and corrosion on pump shafts. Twenty-seven output configurations and eleven internal speed ratios are available across the 489 Series, making it a versatile choice for a range of PTO-driven equipment. Internal components are common with the Chelsea 442 Series, so shops already stocking 442 parts can service this unit with minimal additional inventory.
Features
8-bolt one-piece cast iron housing mounts directly to compatible manual transmission openings without an adapter plate
Wire/cable mechanical shift actuation
1-1/4" round output shaft with key
Intermittent torque rating: 201-300 lb-ft (301-400 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Tapered bearings replace needle bearings for increased load capacity
Kit-style construction shares internal parts with the Chelsea 442 Series, simplifying service and parts stocking
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct-mount to transmission, no adapter plate)
- 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 (500 RPM), 48 HP (1,000 RPM) / 18 kW (500 RPM), 36 kW (1,000 RPM)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICATION: X = No Pressure Lube / P = Pressure Lube (per model suffix)
Additional Information
The Chelsea 489 Series is suited for aerial, vocational and municipal equipment, utility trucks, snow and ice removal, fire and rescue, and dump truck applications. The greaseable output shaft option helps reduce spline fretting and corrosion on pump shafts. Twenty-seven output configurations and eleven internal speed ratios are available across the 489 Series, making it a versatile choice for a range of PTO-driven equipment. Internal components are common with the Chelsea 442 Series, so shops already stocking 442 parts can service this unit with minimal additional inventory.
