Features
Hydraulic PowerShift (hot-shift) operation for engagement under load
10-bolt mounting aperture, engineered for Allison automatic transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring seal between housing and bearing cap reduces vibrational effects and improves clamp load
Enhanced clutch pack with 80% thicker steel discs to resist premature tooth wear
Nine speed ratios including low and high speeds; Wet Spline Lubrication option extends shaft life 7 to 10 times
SmartStart reduces shock load at start-up; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic Hot-Shift)
- Continuous Torque: 390 lb-ft (529 Nm) - verify actual rating on application page
- Continuous Operation: Yes
- Transmission Compatibility: Allison automatic transmissions
- Output Types Available: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Speed Ratios: Nine (includes low and high)
- Lubrication Options: Pressure Lube (P), Wet Spline (W)
- Electronic Overspeed Control (EOC): Included
- SmartStart: Available for certain applications
Additional Information
Parts manual and diagrams: Chelsea 281 Series PTO parts list with prices
Matched by full model number. Check the mounting, input gear and output against the unit you are replacing before you order. Look up any Chelsea, Muncie or Bezares number on our Muncie to Chelsea PTO cross reference.
