The Chelsea 890RDFJW-B5XK or 890RDFJWB5XK is a hydraulic PowerShift 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 delivers an SAE C output shaft configuration with a continuous-duty torque rating up to 670 ft-lb and intermittent torque rated at 501+ lb-ft. A wet-spline output extends PTO and pump shaft life under demanding duty cycles. The one-piece main shaft eliminates input splines between the PTO and the output extension, and the rear-positioned clutch allows the housing to sit tight against the transmission, pushing the pump mounting flange rearward for improved clearance between the PTO and frame rail. Shaft power reaches 64 HP at 500 RPM and 128 HP at 1,000 RPM. Typical applications include aerial trucks, fire and rescue, refuse trucks, and truck cranes. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission configuration.
Features
Hydraulic PowerShift (hot shift) operation for Allison 3000 MD and 4000 HD Series transmissions
10-bolt mounting with SAE C outlet flange and SAE C (XS) output shaft
Continuous-duty torque rating up to 670 ft-lb; intermittent torque 501+ lb-ft
Wet-spline output lubrication extends PTO and pump shaft life
One-piece main shaft eliminates input splines between PTO body and output extension
Rear-positioned clutch and pump flange improve clearance between PTO and frame rail
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: Chelsea 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS)
- Continuous Torque: 670 lb-ft (check application pages for actual torque ratings)
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 64 HP (500 RPM), 128 HP (1,000 RPM)
- Lubricant: Wet Spline
Additional Information
