The Chelsea 890RFFJW-B5XS or 890RFFJWB5XS is a hydraulic hot-shift power take-off from the Chelsea 890 Series, engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and positions the pump output to the rear of the transmission, giving better clearance between the pump and the frame rail without the use of a separate extension. The one-piece main shaft eliminates input splines between the PTO and the output extension, and the clutch sits at the rear of the housing so the gear section tucks tightly against the transmission. The SAE C output shaft uses wet-spline technology for extended pump shaft life under demanding duty cycles. Continuous torque is rated up to 670 ft-lb. Applications include aerial trucks, fire and rescue, refuse, and truck crane work. Call us to confirm proper fit for your specific Allison-equipped chassis.
Features
890 Series hydraulic hot-shift (PowerShift) PTO for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting type with SAE C outlet flange and SAE C (XS) output shaft
Wet-spline output technology extends PTO and pump shaft life in high-demand applications
Continuous-duty torque rating up to 670 ft-lb; intermittent torque rated at 501+ ft-lb
Shaft power output: 64 HP at 500 RPM, 128 HP at 1,000 RPM
One-piece main shaft design eliminates input splines between PTO and output extension for improved reliability
Tech Specs
- Transmission: 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) 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
- Lubricant: Wet Spline (W)
Additional Information
