The Chelsea 890CCFJW-B3XV or 890CCFJWB3XV is a hydraulic hot-shift power take-off built for Allison 3000 MD Series and 4000 HD Series transmissions. It mounts via a 10-bolt pattern and uses an SAE C (XS) output shaft with wet-spline lubrication to extend pump shaft life under demanding duty cycles. The one-piece main shaft eliminates the input splines between the PTO and the output extension - a key structural difference from standard side-mount PTO designs with bolt-on extensions. Continuous-duty torque reaches 670 ft-lb; intermittent torque is rated at 501+ ft-lb. Shaft power output is 64 HP at 500 RPM and 128 HP at 1,000 RPM. Typical applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific transmission configuration.
Features
Fits Allison 3000 MD Series and 4000 HD Series transmissions
10-bolt mounting with SAE C (XS) wet-spline output shaft
Hydraulic PowerShift engagement for on-the-go operation
One-piece main shaft eliminates input splines between PTO body and output extension
Continuous-duty torque rating up to 670 ft-lb; intermittent rating 501+ ft-lb
Shaft power: 64 HP at 500 RPM, 128 HP at 1,000 RPM
Tech Specs
- Transmission Application: Allison 3000 MD Series 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/Spline: 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: 64 HP (48 kW) at 500 RPM; 128 HP (95 kW) at 1,000 RPM
Additional Information
The Chelsea 890 Series positions the PTO and pump mounting flange at the rear of the transmission, fitting between the transmission and the frame rail to provide clearance where side-mount PTOs cannot. The clutch is located at the rear of the PTO housing so the gear section tucks tightly against the transmission. An additional bracket at the rear of the transmission provides support beyond the standard side-mount. Common duty applications for this part include aerial lift trucks, fire and rescue pumpers, refuse trucks, and truck cranes. The 890 Series can be ordered for transmissions equipped with or without a cooler or retarder, or both. Part number 890CCFJW-B3XV is also referenced as SP890CCFJW-B3XV.Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
