The Chelsea 890 Series Power Take-Off, part number 890EDFJW-D5XY or 890EDFJWD5XY, is a hydraulic hot-shift PTO built specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and delivers continuous-duty torque up to 670 ft-lb, with intermittent torque rated at 501+ ft-lb. The SAE C ("XS") output shaft uses Wet Spline technology to extend pump shaft life in demanding duty cycles. Shaft power output reaches 64 HP at 500 RPM and 128 HP at 1,000 RPM. The 890's extended one-piece main shaft locates the pump flange at the rear of the transmission, improving clearance between the pump and frame rail without requiring a separate extension unit. Common applications include aerial trucks, fire and rescue vehicles, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic hot-shift (PowerShift) engagement
SAE C ("XS") Wet Spline output shaft extends pump spline life in high-demand applications
Continuous-duty torque rating up to 670 ft-lb; intermittent torque 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece extended main shaft positions pump flange at the rear of the transmission for improved clearance - no separate PTO extension required
Tech Specs
- Transmission Fit: Allison 3000 MD Series and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (hot-shift)
- Output Shaft Type: SAE C ("XS") Wet Spline
- Outlet Flange Type: SAE C
- Continuous Torque: 670 ft-lb (check application pages for actual torque ratings)
- Intermittent Torque: 501+ ft-lb
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
- Lubricant: Wet Spline
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
