Features
10-bolt mounting aperture designed for Allison and Caterpillar automatic transmissions
Hydraulic PowerShift (hot-shift) operation for continuous-duty use
Ductile iron bearing cap rated 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
80% thicker steel discs in the clutch pack resist premature tooth wear
Nine speed ratios including low and high speeds; 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
- Shift Type: Hydraulic PowerShift (hot-shift)
- Continuous Operation: Yes
- Transmission Compatibility: Allison and Caterpillar automatic transmissions
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Speed Ratios: Nine (including low and high speeds)
- Lubrication Options: Pressure Lube (P), Wet Spline (W)
- Bearing Cap Material: Ductile Iron
- Hose: Included
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
