The Chelsea 890 Series Power Take-Off, part number 890PBFJW-B5XK or 890PBFJWB5XK, is a hydraulic hot-shift PTO engineered specifically for Allison 3000 MD and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and locates the pump output to the rear of the transmission, tucking the housing and gear section tight to the transmission for improved pump clearance. The one-piece main shaft eliminates input splines between the PTO and the output extension. The SAE C (XS) output uses Wet Spline Technology to extend PTO and pump shaft life in demanding conditions. Continuous-duty torque reaches 670 ft-lb, with intermittent torque rated at 501+ ft-lb. Shaft power output is 64 HP at 500 RPM and 128 HP at 1,000 RPM. Applications include aerial trucks, fire and rescue, refuse trucks, and truck cranes. Call us to confirm proper fit for your application.
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 shaft life
One-piece main shaft eliminates input splines between PTO and output extension
Continuous-duty torque rating: 670 ft-lb; intermittent torque: 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission Application: Allison 3000 MD and 4000 HD Series
- Product Series: 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (hot-shift)
- Output Shaft Type: SAE C (XS) Wet Spline
- Outlet Flange Type: SAE C
- 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 at 500 RPM / 128 HP at 1,000 RPM (48 kW at 500 RPM / 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.
