The Chelsea 281GCFJP-D5RZ or 281GCFJPD5RZ is a 281 Series Power Take-Off built for automatic transmissions with a 10-bolt aperture, commonly paired with Allison transmissions. This hydraulically shifted (PowerShift) unit mounts to a 10-bolt aperture and is rated for continuous operation at up to 390 lb-ft continuous torque. The 281 Series is an evolution of the 280 Series, adding a ductile iron bearing cap rated 117% stronger than gray iron, an O-ring sealing configuration between housing and bearing cap, and an 80% thicker clutch-pack steel disc for reduced premature wear. Nine speed ratios cover both low and high ranges. Wet spline lubrication is available on this unit, providing 7 to 10 times greater shaft life. Call us to confirm proper fit for your application.
The Chelsea 281 Series serves demanding markets including fire and rescue, truck cranes, pumper cleaner, and refuse vehicles. The Positive Stop feature on driveline outputs eliminates oil seal damage caused by coupling contact. Rotatable cast-iron flanges reduce interference clearance issues at installation. Electronic Overspeed Control (EOC) is available to protect driven equipment in overspeed conditions. Reference documents for this series include the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual, available from Parker Chelsea.
Features
10-Bolt aperture mounting for Allison automatic transmissions
Hydraulic PowerShift (hot shift) operation for engagement under load
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring seal between housing and bearing cap improves clamp load and resists vibration
80% thicker steel discs in the clutch pack to reduce premature tooth wear
Nine speed ratios including low and high speeds
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
SmartStart feature reduces shock load at start-up
Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt aperture
- Shift Type: PowerShift (Hydraulic)
- Continuous Operation: Yes
- Continuous Torque: 390 lb-ft (529 Nm) - verify actual rating on application page
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 37 HP at 500 RPM / 74 HP at 1000 RPM
- Transmission Compatibility: Allison automatic transmissions (10-bolt aperture)
- Lubrication: Pressure Lube and Wet Spline options
- Speed Ratios: Nine ratios including low and high range
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
Additional Information
The Chelsea 281 Series serves demanding markets including fire and rescue, truck cranes, pumper cleaner, and refuse vehicles. The Positive Stop feature on driveline outputs eliminates oil seal damage caused by coupling contact. Rotatable cast-iron flanges reduce interference clearance issues at installation. Electronic Overspeed Control (EOC) is available to protect driven equipment in overspeed conditions. Reference documents for this series include the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual, available from Parker Chelsea.
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
