The Chelsea 890 Series Power Take-Off 890UFFJW-B5XK or 890UFFJWB5XK is a hydraulic PowerShift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts with a 10-bolt pattern and uses a one-piece main shaft that eliminates the input splines between the PTO body and the output extension, placing the clutch at the rear of the housing so the gear section tucks tightly against the transmission for improved frame-rail clearance. The SAE C output shaft uses Wet Spline technology to extend pump spline service life. Continuous-duty torque rating reaches 670 lb-ft, with shaft power of 64 HP at 500 RPM and 128 HP at 1,000 RPM. Common applications include aerial trucks, fire and rescue, refuse, and truck crane equipment. Call us to confirm proper fit for your specific transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mounting
Hydraulic PowerShift engagement for on-the-go operation
SAE C (XS) output with Wet Spline technology to extend PTO and pump shaft life
One-piece main shaft design eliminates input splines between PTO body and output extension
Continuous-duty torque rating of 670 lb-ft; intermittent torque rated at 501+ lb-ft
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission Compatibility: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Output Shaft Type: SAE C (XS) Wet Spline
- Outlet Flange Type: SAE C
- Continuous Torque Rating: 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 (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
- Lubricant: Wet Spline
Additional Information
Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
