The Chelsea 281 Series Power Take-Off, part number 281GCFJP-B8XD or 281GCFJPB8XD, is a hydraulically shifted hot-shift PTO engineered for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar applications. It carries a single, continuous duty torque rating and offers nine speed ratios spanning low and high ranges. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing the vibrational effects of modern engine designs. The clutch pack features steel disks 80% thicker than the previous 280 Series, resisting premature tooth wear. Rotatable cast-iron flanges reduce interference fit issues, and the Wet Spline Lubrication option extends shaft life by 7 to 10 times. This unit is also cross-referenced as 280GCFJP-B8XD. Call us to confirm proper fit for your application.
The Chelsea 281 Series is an evolution of the 280 Series, designed for demanding markets including fire and rescue, truck cranes, pumper cleaner, and refuse applications. Parker Chelsea publishes the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual for detailed service and application reference.
Features
Ductile Iron Bearing Cap: 117% stronger than gray iron, evolved from the 280 Series design
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
Enhanced Clutch Pack: steel disks 80% thicker than the predecessor 280 Series to resist premature tooth wear
Nine speed ratios including both low and high speeds; single continuous duty torque rating
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
SmartStart reduces shock load at start-up; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt aperture (Allison and Caterpillar automatic transmissions)
- Shift Type: PowerShift (Hydraulic hot-shift)
- Speeds: Nine speed ratios including low and high
- Continuous Torque: 390 lb-ft (529 Nm) - verify actual rating on application pages
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 37 HP at 500 RPM / 74 HP at 1000 RPM
- Lubrication: Pressure Lube (P) and Wet Spline (W) options
- Cross-Reference: 280GCFJP-B8XD or 280GCFJPB8XD
Additional Information
The Chelsea 281 Series is an evolution of the 280 Series, designed for demanding markets including fire and rescue, truck cranes, pumper cleaner, and refuse applications. Parker Chelsea publishes the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual for detailed service and application reference.
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
