The Chelsea 890LGFJW-B5AF or 890LGFJWB5AF is a hydraulic PowerShift power take-off from the Chelsea 890 Series, purpose-built for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and delivers an SAE C ("XS") output flange, making it a direct fit for high-demand pump applications. The one-piece main shaft eliminates intermediate input splines, and the clutch is positioned at the rear of the housing so the gear section tucks tightly against the transmission, pushing the pump mounting flange to the rear for improved clearance between the pump and the frame rail. A Wet Spline output extends PTO and pump shaft life in continuous-duty cycles. Shaft output runs 64 HP at 500 RPM and 128 HP at 1000 RPM. Common applications include aerial trucks, fire and rescue units, and refuse vehicles. Call us to confirm proper fit for your specific transmission configuration.
Features
Chelsea 890 Series, built specifically for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting pattern with SAE C ("XS") output flange
Hydraulic PowerShift (hot shift) engagement
Continuous-duty torque rating up to 670 ft-lb; intermittent torque rated 501+ ft-lb
Wet Spline output to reduce wear on PTO and pump shaft splines
One-piece main shaft moves pump mounting flange to rear of 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") Output
- Outlet Flange Type: SAE C
- Input Gear Designator: FJ - Allison 3000 MD and 4000 HD Series
- Lubricant: Wet Spline
- Continuous Torque: 670 ft-lb (check application pages for actual torque ratings)
- Intermittent Torque: 501+ ft-lb
- Output Power: 56+ HP
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
Additional Information
