Chelsea part number 890EBFJW-B5XV or 890EBFJWB5XV is a 890 Series hydraulic PowerShift power take-off built to fit Allison 3000 MD and 4000 HD Series transmissions. It uses a 10-bolt mounting configuration and an SAE C ("XS") output shaft with Wet Spline technology to extend pump shaft life under demanding, continuous-duty cycles. The one-piece main shaft eliminates the input splines between the PTO and output extension, and the clutch is positioned at the rear of the housing so the gear section tucks tightly against the transmission. That rear-of-transmission pump location delivers the clearance needed for aerial, fire and rescue, and refuse truck applications. Continuous-duty torque is rated at 670 ft-lb; intermittent torque capability exceeds 501 ft-lb. Call us to confirm proper fit for your specific vehicle and transmission configuration.
Features
Fits Allison 3000 MD and 4000 HD Series transmissions via 10-bolt mount
Hydraulic PowerShift (hot shift) engagement
SAE C ("XS") output shaft with Wet Spline technology for extended pump spline life
Continuous-duty torque rating up to 670 ft-lb; intermittent torque 501+ ft-lb
One-piece main shaft eliminates input splines between PTO body and output extension
Rear-of-transmission pump location improves clearance for tight frame-rail installations
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Output Shaft Type: SAE C ("XS")
- Outlet Flange Type: SAE C
- Lubricant/Output: 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 at 500 RPM: 64 HP (48 kW)
- Shaft Power at 1000 RPM: 128 HP (95 kW)
Additional Information
The Chelsea 890 Series is a single-unit PTO, not a PTO combined with a bolt-on extension. Moving the pump output flange to the rear of the transmission frees up clearance between the pump and the frame rail, making this series well suited for aerial trucks, fire and rescue apparatus, snow and ice equipment, and refuse trucks where space is limited and high continuous-duty torque is required. The 890 Series can be ordered for transmissions equipped with or without a cooler, a retarder, or both. Contact Pro Gear and Transmission to verify the correct configuration for your transmission build.Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
