The Chelsea 890 Series Power Take-Off, part number 890LDFJW-D5AZ or 890LDFJWD5AZ, is a hydraulic PowerShift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and features an SAE C ("XS") output shaft with wet-spline lubrication to reduce wear on the PTO and pump shaft under continuous operation. The one-piece main shaft eliminates input splines between the PTO and the output extension, and the clutch is positioned at the rear of the housing so the gear section tucks tightly against the transmission - freeing clearance for the pump. Continuous-duty torque rating reaches 670 ft-lb, with shaft power of 64 HP at 500 RPM and 128 HP at 1,000 RPM. Common applications include aerial trucks, fire and rescue, refuse trucks, and truck cranes. Call us to confirm proper fit for your transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mount
Hydraulic PowerShift (hot shift) operation
SAE C ("XS") output shaft with wet-spline lubrication for extended pump shaft life
Continuous-duty torque rating up to 670 ft-lb; intermittent torque rated 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece main shaft with rear-positioned clutch moves pump output to rear of transmission for improved clearance
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Output Shaft Type: SAE C ("XS") Output
- Outlet Flange Type: SAE C
- Lubricant: Wet Spline
- 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
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
