The Chelsea 890EBFJW-B5AF or 890EBFJWB5AF 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 ("XS") output flange, with shaft power rated at 64 HP at 500 RPM and 128 HP at 1,000 RPM. Continuous-duty torque capacity reaches 670 ft-lb. The one-piece main shaft eliminates input splines between the PTO and output extension, and the clutch is positioned at the rear of the PTO housing so the gear section tucks close to the transmission for tighter clearance. Wet-spline lubrication protects the output shaft and pump splines under demanding duty cycles. Suitable for aerial, fire and rescue, refuse, and crane truck applications. A genuine Chelsea part from 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
SAE C ("XS") output flange and shaft
Continuous-duty torque rating up to 670 ft-lb; intermittent torque 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Wet-spline output extends PTO and pump shaft life in high-demand service
One-piece main shaft and rear-mounted clutch improve pump clearance without an extension unit
Tech Specs
- Transmission Manufacturer: Allison
- Product Series: 890
- Input Gear Designator: FJ - Allison 3000 MD and 4000 HD Series
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C ("XS") Output
- 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) / 48 kW (500 RPM), 95 kW (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.
