The Chelsea 890RBFJW-B5XS or 890RBFJWB5XS is a hydraulic PowerShift PTO assembly engineered for Allison 3000 MD and 4000 HD Series transmissions. The 890 Series positions the pump mounting flange at the rear of the transmission, giving the output shaft the clearance needed for demanding installations. A 10-bolt mounting pattern and SAE C outlet flange are standard. The wet-spline output shaft extends pump spline life in continuous-use applications. Continuous-duty torque rating reaches 670 ft-lb, with shaft power of 64 HP at 500 RPM and 128 HP at 1,000 RPM. Typical applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Call us to confirm proper fit for your application.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mount
Hydraulic PowerShift (hot-shift) engagement
SAE C outlet flange with SAE C wet-spline output shaft
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
Rear-of-transmission pump placement for improved pump clearance
Tech Specs
- Transmission Fit: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C Wet-Spline (XS)
- Continuous Torque Rating: 670 ft-lb (verify actual rating on application pages)
- 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
