281GGFJP-D3AB Chelsea PTO Assembly

The Chelsea 281 Series Power Take-Off, part number 281GGFJP-D3AB or 281GGFJPD3AB, is a hydraulically shifted hot-shift PTO designed for automatic transmissions with a 10-bolt aperture, commonly found on Allison transmissions. It is an evolution of the 280 Series, featuring a ductile iron bearing cap rated 117% stronger than gray iron, an O-ring sealing configuration between the housing and bearing cap, and an enhanced clutch pack with 80% thicker steel discs to resist premature wear. Nine speed ratios cover both low- and high-speed applications. Rotatable cast-iron flanges reduce interference issues, and the Wet Spline Lubrication option extends shaft service life by 7 to 10 times. SmartStart reduces shock load at engagement, and Electronic Overspeed Control (EOC) protects driven equipment. Call us to confirm proper fit for your transmission and application.

Features

Chelsea 281 Series hydraulic (PowerShift) hot-shift PTO, 10-bolt mounting for Allison automatic transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap 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 provides 7 to 10 times greater shaft life
Positive Stop for driveline outputs eliminates oil seal damage from coupling
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
• Compatible Transmission Manufacturer: Allison
• Continuous Torque: 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
• Series: Chelsea 281 Series (evolution of 280 Series)
• Electronic Overspeed Control (EOC): Included
• Wet Spline Lubrication Option: Available
• Speed Ratios: Nine (including low and high)
• Continuous Operation: Yes

Additional Information

Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.