The Chelsea 890 Series Power Take-Off, part number 890RCFJW-B5XV or 890RCFJWB5XV, is a hydraulic PowerShift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and uses a one-piece main shaft design that positions the clutch at the rear of the unit, allowing the housing to sit tight against the transmission for improved pump clearance. The SAE C output shaft uses Wet Spline technology to extend PTO and pump shaft life under demanding duty cycles. Continuous torque capacity reaches 670 ft-lb, with shaft power of 64 HP at 500 RPM and 128 HP at 1,000 RPM. Common applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions (FJ input gear designator)
Hydraulic PowerShift engagement for hot-shift operation under load
10-bolt mounting with rear-of-transmission pump output location for improved clearance
SAE C (XS) output shaft with Wet Spline lubrication to extend pump shaft life
One-piece main shaft eliminates input splines between PTO and output extension
Continuous-duty torque rating of 670 ft-lb; shaft power 64 HP at 500 RPM and 128 HP at 1,000 RPM
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series (Input Gear Designator: FJ)
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS) Wet Spline
- Lubricant: Wet Spline
- 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
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
