The Chelsea 892HBFJW-D5XS or 892HBFJWD5XS is a hydraulic hot-shift power take-off from the Chelsea 892 Series, engineered specifically for Allison 4700 Series transmissions. The 892 Series relocates the PTO and 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 features an SAE C output flange and output shaft type. The one-piece main shaft eliminates input splines between the PTO body and the output extension. Wet spline technology is built in to extend pump shaft life under demanding duty cycles. Typical applications include aerial trucks, fire and rescue apparatus, refuse trucks, and truck cranes. Call us to confirm proper fit for your specific Allison 4700 Series configuration.
Features
Designed for Allison 4700 Series transmissions
Hydraulic hot-shift operation
10-bolt mounting with an SAE C output flange and shaft
One-piece main shaft eliminates input splines between PTO body and output extension
Wet spline output extends PTO and pump shaft life in demanding conditions
Pump flange located at rear of transmission for improved clearance in tight installations
Tech Specs
- Series: Chelsea 892
- Part Number: 892HBFJW-D5XS or 892HBFJWD5XS
- Transmission Fit: Allison 4700 Series
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic (Hot Shift)
- Output Flange Type: SAE C
- Output Shaft Type: SAE C
- Lubricant/Output: Wet Spline
- Intermittent Torque Rating: 501+ lb-ft (501+ Nm)
- Output Power: 56+ HP (51+ kW)
- Input Gear Designator: FJ - Allison 3000 MD and 4000 HD Series
Additional Information
The 892 Series is a single-unit PTO, not a PTO paired with a separate output extension. The clutch is positioned at the rear of the PTO housing, allowing the gear section to sit close against the transmission for maximum clearance between the unit and the frame rail. This design makes the 892 Series well-suited for applications where space is restricted, such as aerial trucks, fire and rescue vehicles, snow and ice equipment, and refuse trucks. The unit can be configured for transmissions equipped with or without a cooler or retarder. Part number SP892HBFJW-D5XS may appear as a cross-reference in some catalog listings.Parts Manual: Chelsea 892 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
