The Chelsea 890CDFJW-B3CF is a 10-bolt, hydraulic PowerShift Power Take-Off built for Allison 3000 MD and 4000 HD Series transmissions. Part of the 890 Series, it mounts between the transmission and frame rail, positioning the SAE C output flange to the rear of the transmission for improved pump clearance. The wet spline output extends PTO and pump shaft life under demanding duty cycles. The one-piece main shaft eliminates the input splines found between the PTO and a separate output extension, and the clutch is located at the rear to allow the housing and gear section to tuck tightly against the transmission. The 890 Series suits aerial trucks, fire and rescue, refuse, truck cranes, and snow and ice equipment where pump space and high torque are priorities. Available from Pro Gear and Transmission.
Features
Hydraulic PowerShift (hot shift) operation
10-bolt mounting for Allison 3000 MD and 4000 HD Series transmissions
SAE C output flange with wet spline output for extended shaft life
One-piece main shaft eliminates input splines between PTO and output extension
Clutch located at rear of unit for tighter transmission clearance
Suited for aerial trucks, fire and rescue, refuse trucks, and truck cranes
Tech Specs
- Series: Chelsea 890
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift
- Input Gear Designator: FJ (Allison 3000 MD and 4000 HD Series)
- Lubricant/Output: W - Wet Spline
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C (XS)
- Intermittent Torque: 501+ lb-ft
- Output Power: 56+ HP / 51+ kW (series rating)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
Additional Information
The 890 Series can be configured for transmissions equipped with or without a cooler, retarder, or both. The 890 Series is a single integrated unit, not a PTO paired with a separate extension, making it a compact solution where frame rail clearance is limited. Typical markets include aerial, on-highway, defense, and other mobile equipment applications.Parts Manual: Chelsea 890 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
