The Chelsea 890CAFJW-B3CZ or 890CAFJWB3CZ is a hydraulic PowerShift PTO from the 890 Series, engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and uses a SAE C ("XS") output shaft with wet-spline lubrication to extend shaft and pump spline life under demanding duty cycles. Continuous-duty torque reaches 670 ft-lb, with intermittent torque rated at 501+ ft-lb. Shaft power output is 64 HP at 500 RPM and 128 HP at 1,000 RPM. The one-piece main shaft eliminates input splines between the PTO and output extension, and the clutch is positioned at the rear of the housing so the gear section tucks tightly against the transmission for improved pump clearance. Typical applications include aerial trucks, fire and rescue, truck cranes, refuse trucks, and snow and ice equipment. Call us to confirm proper fit for your specific chassis and transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic PowerShift (hot-shift) engagement
SAE C ("XS") wet-spline output shaft for extended pump spline life
Continuous-duty torque rating of 670 ft-lb; intermittent torque 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece main shaft with rear-mounted clutch positions pump output to the rear of the 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") 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
- Lubrication: 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.
