The Chelsea 890 Series Power Take-Off, part number 890XBFJW-N5XY, is a hydraulic PowerShift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. The 890 Series uses a 10-bolt mounting configuration and positions the pump output flange at the rear of the transmission, gaining clearance where space is tightest. The output is SAE C with Wet Spline Technology, which extends service life on both the PTO shaft and the mating pump shaft under continuous-duty demands. A one-piece main shaft eliminates input splines between the PTO body and the output extension. The series is rated for intermittent torque above 501 lb-ft and output power above 56 HP. Typical applications include aerial trucks, fire and rescue apparatus, refuse trucks, and truck cranes.
Features
Hydraulic PowerShift (hot shift) operation
10-bolt mounting, fits Allison 3000 MD and 4000 HD Series transmissions
SAE C output flange and SAE C wet spline output shaft
Wet Spline Technology for extended PTO and pump shaft life
One-piece main shaft, no input splines between PTO body and output extension
Pump output located at rear of transmission for improved pump clearance
Tech Specs
- Series: Chelsea 890
- Part Number: 890XBFJW-N5XY
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Input Gear Designator: FJ - Allison 3000 MD and 4000 HD Series
- Output Shaft Type: SAE C with Wet Spline
- Outlet Flange Type: SAE C
- Intermittent Torque Rating: 501+ lb-ft / 501+ Nm
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM (48 kW at 500 RPM, 95 kW at 1000 RPM)
- Lubricant/Spline: Wet Spline (W)
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
