The Chelsea 890LCFJW-B5XK or 890LCFJWB5XK is a hydraulic PowerShift PTO assembly from the Chelsea 890 Series, engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and uses a Wet Spline SAE C output shaft to extend pump shaft service life under demanding duty cycles. The design relocates the pump mounting flange to the rear of the transmission, giving the housing and gear section room to tuck tightly between the transmission and frame rail. The single, one-piece main shaft eliminates the input splines between the PTO and the output extension. Continuous-duty torque reaches 670 ft-lb; intermittent torque rating is 501+ ft-lb. Shaft power is rated at 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. A genuine Chelsea part from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Chelsea 890 Series PTO engineered for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting; mounts like a standard side-mounted PTO with an additional rear-of-transmission support bracket
Hydraulic PowerShift (hot shift) engagement
SAE C ("XS") Wet Spline output shaft extends PTO and pump shaft life in demanding conditions
Continuous-duty torque rating: 670 ft-lb; intermittent torque: 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM; extended shaft 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.
