The Chelsea 892CEFJW-B3XY is a hydraulic hot-shift Power Take-Off from the Chelsea 892 Series, engineered specifically for Allison 4700 Series transmissions. The 892 Series moves the PTO and pump mounting flange to the rear of the transmission, giving the pump room to breathe in tight frame-rail installations. A one-piece main shaft eliminates input splines between the PTO and the output extension, and the clutch sits at the rear of the housing so the gear section tucks tightly against the transmission. Wet Spline output technology is standard on this unit, extending PTO and pump shaft life in demanding, continuous-duty applications such as aerial trucks, fire and rescue, refuse, and snow-and-ice equipment. Mounting is 10-bolt with an SAE C outlet flange and SAE C output shaft type. Output power for the 892 Series reaches 56+ HP (51+ kW), with intermittent torque rated at 501+ lb-ft. Available from Pro Gear and Transmission.
Features
Designed for Allison 4700 Series transmissions with 10-bolt mounting
Hydraulic hot-shift operation for engagement under load
SAE C outlet flange and SAE C output shaft type
Wet Spline output technology for extended PTO and pump shaft life
Pump mounting flange located at the rear of the transmission for improved pump clearance
One-piece main shaft eliminates input splines between PTO body and output extension
Tech Specs
- Series: Chelsea 892
- Transmission Fit: Allison 4700 Series
- Shift Type: Hydraulic Hot Shift
- Mounting Type: 10-Bolt
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C
- Lubricant/Output: Wet Spline
- Output Power (Series): 56+ HP / 51+ kW
- Intermittent Torque (Series): 501+ lb-ft / 501+ Nm
- Input Gear Designator: FJ (Allison 3000 MD and 4000 HD Series)
Additional Information
The 892 Series is a single integrated unit, not a PTO paired with a separate extension. It mounts like a standard side-mounted PTO but includes an additional support bracket at the rear of the transmission. Typical applications include aerial trucks, fire and rescue apparatus, pumper cleaners, truck cranes, and refuse trucks. Parker Chelsea documents covering this series include the 890/892/897/899 Series Owner's Manual and the 892 Series Parts List (HY25-2892-M1_US).Parts Manual: Chelsea 892 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
