Description
The Chelsea 281 Series Power Take-Off, part number 281GGFJP-E5XV or 281GGFJPE5XV, is a hydraulically shifted hot-shift PTO engineered for automatic transmissions with a 10-bolt aperture, including Allison applications. An evolution of the 280 Series, the 281 features a ductile iron bearing cap rated 117% stronger than gray iron, an O-ring sealing configuration between the housing and bearing cap for improved clamp load, and an enhanced clutch pack with 80% thicker steel discs to resist premature tooth wear. Nine speed ratios cover both low- and high-speed output needs. The Wet Spline Lubrication option delivers 7 to 10 times greater shaft life, while SmartStart reduces shock load at start-up and Electronic Overspeed Control (EOC) safeguards driven equipment. Call us to confirm proper fit for your application.
Features
10-bolt mounting aperture for Allison and compatible automatic transmissions
Hydraulic PowerShift (hot-shift) operation for engagement under load
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing between housing and bearing cap improves clamp load and reduces vibration effects
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 provides 7 to 10 times greater shaft life
SmartStart reduces start-up shock load; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting: 10-Bolt aperture
- Shift Type: Hydraulic PowerShift (hot shift)
- Compatible Transmissions: Allison automatic
- Continuous Torque Rating: 390 lb-ft (529 Nm), verify actual rating on application page
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Speed Ratios: Nine ratios, including low and high speeds
- Lubrication: Pressure Lube (P) or Wet Spline (W) option
- Electronic Overspeed Control (EOC): Included
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
