The Chelsea 892HCFJW-B5XY or 892HCFJWB5XY 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 pump mounting flange to the rear of the transmission, improving pump clearance in tight frame-rail installations. It mounts via a 10-bolt pattern and uses an SAE C outlet flange with an SAE C output shaft. The one-piece main shaft eliminates input splines between the PTO and output extension, while the wet spline output extends pump shaft life under demanding duty cycles. Typical applications include aerial trucks, fire and rescue trucks, refuse trucks, and truck cranes. Available from Pro Gear and Transmission. Call us to confirm proper fit for your specific transmission configuration.
Features
Chelsea 892 Series PTO, part number 892HCFJW-B5XY or 892HCFJWB5XY
Designed for Allison 4700 Series transmissions
10-bolt mounting with SAE C outlet flange and SAE C output shaft type
Hydraulic hot-shift operation
Wet spline output technology for extended PTO and pump shaft life
One-piece main shaft eliminates input splines between PTO and output extension
Rear-of-transmission pump flange location 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
- Input Gear Designator: FJ - Allison 3000 (MD) and 4000 (HD) Series
- Lubricant/Output Option: W - Wet Spline
- Transmission Application: Allison 4700 Series
- Series: Chelsea 892
- Intermittent Torque Rating: 501+ lb-ft
- Output Power: 56+ HP
Additional Information
The Chelsea 892 Series is a single-unit PTO, not a PTO paired with a separate extension. The clutch is positioned at the rear of the PTO housing, allowing the gear section to tuck tightly against the transmission for maximum clearance between the unit and the frame rail. The 892 Series can be configured for transmissions with or without a cooler, a retarder, or both. Common service applications include aerial work trucks, fire and rescue pumper equipment, snow and ice control vehicles, refuse trucks, and truck cranes where both pump clearance and high continuous torque output are priorities.Parts Manual: Chelsea 892 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
