Features
281 Series hydraulic PowerShift (hot-shift) PTO for 10-bolt automatic transmission apertures, commonly Allison and Caterpillar
Ductile iron bearing cap rated 117% stronger than gray iron for increased durability under vibration
O-ring sealing configuration between housing and bearing cap improves clamp load and resists vibrational effects
Enhanced clutch pack with 80% thicker steel discs to resist premature tooth wear
Nine speed ratios including low and high speeds; continuous torque rating up to 390 lb-ft
Wet Spline Lubrication option provides 7 to 10 times greater shaft life; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic (PowerShift / Hot-Shift)
- Continuous Torque: 390 lb-ft (529 Nm) - verify actual rating on application pages
- Speed Ratios: Nine (includes low and high speeds)
- Compatible Transmissions: Allison and Caterpillar automatic transmissions (10-bolt aperture)
- Continuous Operation: Yes
- Lubrication: Pressure Lube or Wet Spline option
- Output Options: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
