The Chelsea 281GDFJP-H5XD or 281GDFJPH5XD is a 281 Series hydraulically shifted (PowerShift) power take-off built for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar applications. The 281 Series delivers a single, continuous duty torque rating of 390 lb-ft (529 Nm) and offers nine speed ratios spanning low and high ranges. A ductile iron bearing cap provides 117% greater strength than gray iron, and an upgraded clutch pack features steel discs that are 80% thicker to resist premature wear. Rotatable cast-iron flanges reduce interference at pump mounting, and the Wet Spline Lubrication option extends shaft life 7 to 10 times over standard configurations. Call us to confirm proper fit for your transmission and application.
Features
Hydraulic PowerShift (hot-shift) operation for engaging under load on automatic transmissions
Ductile iron bearing cap, 117% stronger than gray iron bearing caps
Enhanced clutch pack with steel discs 80% thicker than predecessor 280 Series
O-ring sealing configuration between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios available, including low and high-speed options
Electronic Overspeed Control (EOC) protects driven equipment; SmartStart reduces shock load at engagement
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic Hot-Shift)
- Compatible Transmissions: Allison and Caterpillar automatic (10-bolt aperture)
- Continuous Torque Rating: 390 lb-ft (529 Nm)
- Speed Ratios: Nine ratios, including low and high speeds
- Lubrication: Wet Spline option (7-10x greater shaft life)
- Bearing Cap Material: Ductile Iron
- Continuous Operation: Yes
- Series: Chelsea 281 Series (evolution of 280 Series)
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
