281GGFJP-K5RY Chelsea PTO Assembly

The Chelsea 281 Series Power Take-Off (part number 281GGFJP-K5RY or 281GGFJPK5RY) is a hydraulically shifted, hot-shift PTO engineered for automatic transmissions with a 10-bolt aperture, including Allison transmissions. It delivers a continuous torque rating of up to 390 lb-ft 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 from modern engine designs. Rotatable cast-iron flanges reduce pump clearance interference, and a Positive Stop for driveline outputs eliminates oil seal damage from coupling contact. A hose is included with the unit. Available with Wet Spline Lubrication, which extends shaft life 7 to 10 times. Electronic Overspeed Control (EOC) protects driven equipment, and SmartStart reduces shock load at start-up on compatible applications. A genuine Chelsea part from Pro Gear and Transmission. Call us to confirm proper fit for your application.

Features

Chelsea 281 Series hydraulic PowerShift (hot-shift) PTO for 10-bolt automatic transmission aperture
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring sealing configuration improves clamp load and reduces vibrational 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 extends shaft life 7 to 10 times
Positive Stop for driveline outputs eliminates oil seal damage from coupling
SmartStart reduces start-up shock load; Electronic Overspeed Control (EOC) protects driven equipment
Hose included - no separate order required

Tech Specs

• Mounting Type: 10-Bolt aperture
• Shift Type: Hydraulic PowerShift (hot-shift)
• Compatible Transmission: Allison automatic transmissions
• Continuous Torque: up to 390 lb-ft (529 Nm) - confirm actual rating on application-specific pages
• Speed Ratios: Nine ratios, including low and high speeds
• Continuous Operation: Yes
• Lubrication Option: Wet Spline (W) or Pressure Lube (P)
• Electronic Overspeed Control (EOC): Included
• SmartStart: Available for compatible applications
• 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.