The Chelsea 890 Series Power Take-Off Assembly, part number 890UCFJW-B5XS or 890UCFJWB5XS, is a hydraulic hot-shift PTO built specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and delivers a continuous-duty torque rating up to 670 ft-lbs, with an intermittent rating exceeding 501 ft-lbs. Shaft power output reaches 64 HP at 500 RPM and 128 HP at 1,000 RPM. The SAE C output shaft uses Wet Spline Technology to extend pump shaft service life in demanding conditions. The 890 Series design relocates the pump mounting flange to the rear of the transmission, providing improved clearance between the PTO and frame rail. The one-piece main shaft eliminates the input splines between the PTO body and output extension. Common applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic PowerShift (hot shift) engagement
Continuous-duty torque rating up to 670 ft-lbs; intermittent rating 501+ ft-lbs
SAE C outlet flange and SAE C extended output shaft for improved pump clearance
Wet Spline output extends PTO and pump shaft service life
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (Hot Shift)
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C Extended (XS)
- Lubrication: Wet Spline
- Continuous Torque: 670 ft-lbs (check application pages for actual torque ratings)
- Intermittent Torque: 501+ ft-lbs
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
Additional Information
