281GPKVP-D8AC Chelsea PTO Assembly

The Chelsea 281 Series Power Take-Off, part number 281GPKVP-D8AC or 281GPKVPD8AC, is a hydraulically shifted hot-shift PTO engineered for automatic transmissions with a 10-bolt aperture, commonly fitted to Allison transmissions. It carries a single, continuous duty torque rating and offers nine speed ratios covering both low and high ranges. The ductile iron bearing cap is 117% stronger than gray iron, and an o-ring sealing configuration between the housing and bearing cap improves clamp load while reducing vibrational effects. The clutch pack features steel discs 80% thicker than the previous generation to resist premature tooth wear. Rotatable cast-iron flanges reduce interference fit issues, and the Wet Spline Lubrication option delivers 7 to 10 times greater shaft life. Electronic Overspeed Control (EOC) protects downstream driven equipment, and the SmartStart feature reduces shock load at start-up. A genuine Chelsea part sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.

Features

Ductile Iron Bearing Cap - 117% stronger than gray iron for increased durability
O-ring sealing configuration between housing and bearing cap improves clamp load and resists vibrational effects
Enhanced Clutch Pack - steel discs 80% thicker than predecessor to resist premature tooth wear
Nine speed ratios available, including both low and high-speed ranges
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
Electronic Overspeed Control (EOC) protects driven equipment; SmartStart reduces shock load at engagement
Rotatable cast-iron flanges reduce pump interference; Positive Stop for driveline outputs eliminates oil seal damage

Tech Specs

• Mounting Type: 10-Bolt
• Shift Type: PowerShift (Hydraulic)
• Transmission Compatibility: Allison automatic transmissions
• Speed Ratios: Nine ratios, including low and high speeds
• Continuous Operation: Yes
• Lubrication Options: Pressure Lube (P) or Wet Spline (W)
• 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.