The Chelsea 890RFFJW-D5XS or 890RFFJWD5XS is a 10-bolt, hydraulic PowerShift PTO from the Chelsea 890 Series, engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. The extended one-piece main shaft relocates the pump mounting flange to the rear of the transmission, providing improved pump clearance without the joint weakness of a PTO-plus-extension design. The SAE C output shaft uses Wet Spline Technology to reduce wear in high-demand applications. Continuous-duty torque rating 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 1000 RPM. Common applications include aerial trucks, fire and rescue, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Chelsea 890 Series - designed for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting, hydraulic PowerShift (hot shift) engagement
SAE C (XS) output shaft with Wet Spline Technology for extended pump spline life
Continuous-duty torque rating up to 670 ft-lb; intermittent torque 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1000 RPM
One-piece extended main shaft relocates pump flange rearward 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
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS)
- 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 (500 RPM), 128 HP (1000 RPM)
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
