The Chelsea 892HCFJW-D5ZS 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, improving pump clearance without requiring a separate extension. The housing and gear section tuck tightly against the transmission while a one-piece main shaft eliminates input splines between the PTO and the output. Mounting is 10-bolt with an SAE C outlet flange. The output uses Chelsea's wet spline design to extend PTO and pump shaft life under continuous-duty demand. Typical applications include aerial trucks, fire and rescue trucks, truck cranes, and refuse trucks. Call us to confirm proper fit for your specific Allison 4700 application.
Features
Hydraulic hot shift operation for Allison 4700 Series transmissions
10-bolt mounting with SAE C outlet flange and SAE C output shaft
Wet spline output extends PTO and pump shaft life in demanding duty cycles
PTO and pump flange positioned at the rear of the transmission for improved pump clearance
One-piece main shaft design eliminates input splines between PTO and output extension
Series intermittent torque rating exceeds 501 lb-ft with output power exceeding 56 HP
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic Hot Shift
- Outlet Flange Type: SAE C
- Output Shaft Type: SAE C
- Output Lubrication: Wet Spline
- Compatible Transmission: Allison 4700 Series
- Series Intermittent Torque: 501+ lb-ft (501+ Nm)
- Series Output Power: 56+ HP (51+ kW)
- Input Gear Designator: FJ (Allison 3000 MD and 4000 HD Series)
- Product Series: 892
Additional Information
The Chelsea 892 Series is a single-unit PTO -- not a PTO with a separate extension. The clutch is positioned at the rear of the PTO, allowing the housing and gear section to sit close to the transmission for tighter clearance. An additional bracket at the rear of the transmission provides supplemental support beyond standard side-mount hardware. The 892 Series can be configured for transmissions equipped with or without a cooler, a retarder, or both. Common vocational applications include aerial trucks, fire and rescue trucks, truck cranes, pumper cleaners, and refuse trucks.Parts Manual: Chelsea 892 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
