The Chelsea 890RDFJW-B5XS or 890RDFJWB5XS 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 flange to the rear of the transmission, providing pump clearance in tight frame-rail installations. The SAE C ("XS") extended output shaft and Wet Spline Technology reduce wear on the PTO and pump shaft in demanding duty cycles. Continuous torque is rated up to 670 ft-lb, with intermittent torque exceeding 501 ft-lb. Shaft power output reaches 64 HP at 500 RPM and 128 HP at 1,000 RPM. Common applications include fire and rescue trucks, aerial trucks, truck cranes, and refuse vehicles. A genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic PowerShift (hot-shift) engagement for on-the-go operation
SAE C ("XS") extended output shaft improves pump clearance behind the transmission
Wet Spline output extends PTO and pump shaft service life under demanding loads
Continuous torque rated up to 670 ft-lb; intermittent torque exceeds 501 ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission Manufacturer: Allison 3000 MD & 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") Output
- Lubricant / Spline Type: Wet Spline
- Continuous Torque: 670 lb-ft (see application pages for verified rating)
- Intermittent Torque: 501+ lb-ft
- 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
