The Chelsea 489 Series Power Take-Off Assembly, part number 489GHAHX-V3AZ or 489GHAHXV3AZ, mounts directly to an 8-bolt transmission opening on compatible manual transmissions including Eaton Fuller, Volvo/Mack, and Tremec applications. The one-piece cast iron housing eliminates the need for an adapter plate, removing a potential leak path in the process. Output is through a 1-1/4" round shaft with key, rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM, with an intermittent torque capacity of 250 lb-ft (339 Nm) for this series. Shift is wire/cable mechanical. Internal parts are common to the Chelsea 442 Series, and the kit-style design simplifies field service. Call us to confirm proper fit for your transmission and application.
The Chelsea 489 Series is designed for utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The 489 Series PTO fits manual transmissions with an 8-bolt mounting aperture, including Eaton Fuller, Eaton Endurant, Mack, and Tremec. The integral cast iron housing bolts directly to the transmission opening, providing the same torque capacity as the 442 Series while eliminating the adapter plate leak path. Tapered bearings replace needle bearings for greater load-bearing capability. Twenty-seven output options are available across the series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift configurations are offered across the series. For parts and service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
Features
489 Series, 8-bolt direct-mount cast iron housing, no adapter plate required
Wire/cable mechanical shift type
1-1/4" round output shaft with key
Intermittent torque rating: 250 lb-ft (339 Nm) for the 489 Series (verify actual rating on Chelsea application pages)
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Kit-style assembly with internal parts common to the Chelsea 442 Series for simplified service
Greaseable output options available; compatible with Eaton Fuller, Volvo/Mack, and Tremec manual transmissions
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 at 500 RPM, 48 HP at 1,000 RPM (18 kW at 500 RPM, 36 kW at 1,000 RPM)
- INTERMITTENT TORQUE (Series): 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)
- TRANSMISSION COMPATIBILITY: Eaton/Fuller, Volvo/Mack, Tremec, and other 8-bolt manual transmissions
- LUBRICANT: X = No Pressure Lube, P = Pressure Lube
Additional Information
The Chelsea 489 Series is designed for utility trucks, dump trucks, snow and ice removal equipment, and fire and rescue vehicles. The 489 Series PTO fits manual transmissions with an 8-bolt mounting aperture, including Eaton Fuller, Eaton Endurant, Mack, and Tremec. The integral cast iron housing bolts directly to the transmission opening, providing the same torque capacity as the 442 Series while eliminating the adapter plate leak path. Tapered bearings replace needle bearings for greater load-bearing capability. Twenty-seven output options are available across the series, including a 360-degree rotatable flange with greaseable shaft to reduce pump shaft spline fretting and corrosion. Eleven internal speed ratios and shift configurations are offered across the series. For parts and service documentation, refer to the 489 Series Parts List (HY25-2442-M1_US) and the Chelsea Service Manual (HY25-6489-M1/US).
