Description
The Chelsea 489 Series Power Take-Off Assembly, part number 489XXAHX-A6XK or 489XXAHXA6XK, mounts directly to the 8-bolt transmission opening on most manual transmissions, including Eaton Fuller, Mack, and Tremec units, eliminating the need for an adapter plate and reducing potential leak paths. The one-piece cast iron housing delivers the same intermittent torque capacity as the 442 Series: 250 lb-ft (339 Nm). Output is a 1-1/4″ round shaft with key, and shift is wire/cable mechanical. Shaft power output is 24 HP at 500 RPM and 48 HP at 1,000 RPM. Internal parts are common to the Chelsea 442 Series, making bench service straightforward. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 489 Series PTO, part number 489XXAHX-A6XK
8-bolt direct-mount housing eliminates adapter plate and reduces leak paths
Wire/cable mechanical shift; electric-over-air shift option also available
1-1/4″ round output shaft with key
Intermittent torque rating: 250 lb-ft (339 Nm); shaft power 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to the Chelsea 442 Series for easier service
Fits manual transmissions including Eaton Fuller, Mack, and Tremec with 8-bolt PTO aperture
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt (direct-mount, no adapter plate required)
- SHIFT TYPE: Wire/Cable Mechanical (electric-over-air option available)
- OUTPUT SHAFT TYPE: 1-1/4″ Round with Key
- INTERMITTENT TORQUE: 250 lb-ft / 339 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)
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 30% (check application pages for actual ratings)
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other manual transmissions with 8-bolt PTO aperture
Additional Information
The Chelsea 489 Series is engineered for vocational and municipal applications including utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The series offers twenty-seven output options, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and multiple shift configurations make the 489 a versatile platform across a wide range of mobile equipment installations. Kit-style construction allows individual internal components to be replaced without full unit removal, and internal parts are interchangeable with the Chelsea 442 Series.
