The Chelsea 890 Series Power Take-Off, part number 890UCFJW-K5XS or 890UCFJWK5XS, is a hydraulic PowerShift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and positions the SAE C output flange toward the rear of the transmission, giving the hydraulic pump room it needs without an extension assembly. The main shaft is a single one-piece design, eliminating input splines between the PTO body and the output extension. A wet-spline output lubricates the pump shaft interface during operation. Continuous torque reaches 670 lb-ft, with intermittent torque rated above 501 lb-ft. Shaft power output is 64 HP at 500 RPM and 128 HP at 1,000 RPM. Call Pro Gear and Transmission to confirm proper fit for your application.
Features
10-bolt hydraulic PowerShift shift type for Allison 3000 MD and 4000 HD Series transmissions
SAE C (XS) output shaft positions the pump to the rear of the transmission for improved clearance
Single one-piece main shaft eliminates input splines between PTO body and output extension
Wet-spline output extends PTO and pump shaft life under demanding conditions
Continuous-duty torque rating up to 670 lb-ft; intermittent torque rated above 501 lb-ft
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Product Series: 890
- Transmission Application: Allison 3000 MD and 4000 HD Series (Input Gear Designator: FJ)
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS) Extended Output
- Lubricant: Wet Spline
- 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 (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.
