The Chelsea 890CAFJW-G3CS or 890CAFJWG3CS is a hydraulic PowerShift power take-off built for Allison 3000 MD and 4000 HD Series transmissions. It uses a 10-bolt mounting configuration and delivers an SAE C ("XS") output with a continuous-duty torque rating of 670 ft-lb and intermittent torque above 501 ft-lb. Shaft power reaches 64 HP at 500 RPM and 128 HP at 1,000 RPM. The 890 Series design relocates the pump mounting flange to the rear of the transmission, giving the pump adequate clearance between the transmission and frame rail. A one-piece main shaft eliminates the input splines found in PTO-plus-extension setups. Wet-spline output technology protects pump shaft splines in demanding, continuous-duty cycles. Typical applications include aerial trucks, fire and rescue apparatus, truck cranes, and refuse vehicles. 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 ("XS") output shaft and outlet flange
670 ft-lb continuous-duty torque rating; 501+ ft-lb intermittent torque rating
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Wet-spline output extends PTO and pump shaft life in high-demand service
Extended shaft positions pump output to the rear of the transmission for improved clearance
Tech Specs
- Transmission: Allison 3000 MD and 4000 HD Series
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Product Series: 890
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C ("XS") Output
- 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/Spline: Wet Spline
Additional Information
