Description
The Chelsea 281 Series Power Take-Off, part number 281GTFJR-D5AC or 281GTFJRD5AC, is a hydraulically shifted hot-shift PTO engineered for automatic transmissions with a 10-bolt aperture, commonly used on Allison transmissions. It carries a single continuous-duty torque rating and offers nine speed ratios spanning both low and high ranges. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing vibrational effects from modern engine designs. Rotatable cast-iron flanges cut interference issues at the pump mount. The Wet Spline Lubrication option delivers 7 to 10 times greater shaft life, and the SmartStart feature reduces shock load at start-up. Electronic Overspeed Control (EOC) protects driven equipment. Call us to confirm proper fit for your application.
Features
Hydraulic hot-shift (PowerShift) operation for use with 10-bolt automatic transmission apertures, commonly Allison
Ductile iron bearing cap, 117% stronger than gray iron, for increased durability against modern engine vibration
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
Nine speed ratios including both low and high speeds
Rotatable cast-iron flanges reduce pump clearance interference issues
Wet Spline Lubrication option provides 7 to 10 times greater shaft life; SmartStart reduces shock load at start-up; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic Hot-Shift)
- Compatible Transmission: Allison (10-bolt aperture)
- Continuous Torque Rating: 390 lb-ft (529 Nm) – verify actual rating on application page
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 37 HP at 500 RPM, 74 HP at 1000 RPM
- Speed Ratios: Nine, including low and high speeds
- Lubricant Options: Pressure Lube (P) or Wet Spline (W)
- Continuous Operation: Yes
- Hose: Included
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
