The Chelsea 489 Series Power Take-Off Assembly, part number 489XHAHX-V5XY or 489XHAHXV5XY, mounts directly to an 8-bolt transmission opening on most manual transmissions, including Eaton Fuller, Volvo/Mack, and Tremec, without requiring an adapter plate. The one-piece cast iron housing shares the same 250 lb-ft intermittent torque capacity as the Chelsea 442 Series. Output is a 1-1/4" round shaft with key, and shift actuation is wire/cable mechanical. Shaft power delivery is rated at 24 HP at 500 RPM and 48 HP at 1,000 RPM, with output power in the 46-55 HP range. Strong tapered bearings replace needle bearings for greater load capacity. Call us to confirm proper fit for your transmission and application.
The Chelsea 489 Series fits applications including utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. Eleven internal speed ratios and shift options are available across the series. Twenty-seven output configurations include Chelsea's 360-degree rotatable flange with greaseable shaft. The 489 Series parts list is published as Parker document HY25-2442-M1_US, and the service manual is HY25-6489-M1/US.
Features
8-bolt one-piece cast iron housing mounts directly to transmission opening, no adapter plate required
Wire/cable mechanical shift; Electric over Air shift option available
1-1/4" round output shaft with key
Intermittent torque rating: 201-300 lb-ft (301-400 Nm) series range; 250 lb-ft characteristic torque capacity
Shaft power: 24 HP at 500 RPM, 48 HP at 1,000 RPM
Internal parts common to the Chelsea 442 Series; kit-style design for straightforward servicing
Greaseable output options to reduce pump shaft spline fretting and corrosion
Tech Specs
- PRODUCT SERIES: 489
- MOUNTING TYPE: 8-Bolt, one-piece cast iron housing (no adapter plate required)
- SHIFT TYPE: Wire/Cable Mechanical
- INTERMITTENT TORQUE: 201-300 lb-ft / 301-400 Nm (series range); 250 lb-ft / 339 Nm characteristic capacity (check application pages for actual torque ratings)
- CONTINUOUS TORQUE: De-rate intermittent torque rating by 30% (check application pages for actual torque ratings)
- 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)
- OUTPUT SHAFT TYPE: 1-1/4" Round with key
- TRANSMISSION COMPATIBILITY: Eaton Fuller, Volvo/Mack, Tremec, and most manual transmissions with 8-bolt PTO opening
- LUBRICANT: X = No Pressure Lube; P = Pressure Lube
Additional Information
The Chelsea 489 Series fits applications including utility trucks, dump trucks and trailers, snow and ice removal equipment, and fire and rescue vehicles. Eleven internal speed ratios and shift options are available across the series. Twenty-seven output configurations include Chelsea's 360-degree rotatable flange with greaseable shaft. The 489 Series parts list is published as Parker document HY25-2442-M1_US, and the service manual is HY25-6489-M1/US.
