The Chelsea 892CBFJW-B3XY or 892CBFJWB3XY is a hydraulic hot-shift power take-off from the Chelsea 892 Series, purpose-built for Allison 4700 Series transmissions. The 892 Series design relocates the PTO and pump mounting flange to the rear of the transmission, gaining clearance where standard side-mount PTOs run out of room. It uses a 10-bolt mounting pattern with an SAE C outlet flange and SAE C output shaft. The one-piece main shaft eliminates input splines between the PTO and 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 extends pump shaft life under demanding duty cycles. Typical applications include aerial trucks, fire and rescue, truck cranes, and refuse trucks. Call us to confirm proper fit for your specific transmission configuration.
Features
Chelsea 892 Series PTO designed for Allison 4700 Series transmissions
Hydraulic hot-shift operation
10-bolt mounting with SAE C outlet flange and SAE C output shaft
One-piece main shaft eliminates input splines between PTO body and output
Wet Spline output extends PTO and pump shaft life in high-demand applications
PTO and pump flange relocated to rear of transmission for improved pump clearance
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic Hot Shift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C
- Lubricant/Output Interface: Wet Spline
- Input Gear Designator: FJ - Allison 3000 MD and 4000 HD Series
- Transmission Application: Allison 4700 Series
- Series Intermittent Torque Rating: 501+ lb-ft
- Series Output Power: 56+ HP
Additional Information
The Chelsea 892 Series mounts like a standard side-mounted PTO but adds a support bracket at the rear of the transmission. The series is a single-unit design, not a PTO with a separate extension, which reduces potential failure points. The clutch assembly is positioned at the rear of the PTO body, allowing the housing and gear section to sit as close to the transmission as possible. The 892 Series can be ordered for transmissions equipped with or without a cooler, a retarder, or both. Part number 892CBFJW-B3XY is also referenced as SP892CBFJW-B3XY. Not sure this is your part? Give us a call and we can help verify the correct fit for your transmission build.Parts Manual: Chelsea 892 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
