281GTFJP-B8RY Chelsea PTO Assembly

The Chelsea 281GTFJP-B8RY or 281GTFJPB8RY is a 281 Series Power Take-Off assembly designed for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar transmissions. This series uses hydraulic PowerShift engagement and is rated for continuous operation. The 281 Series is an evolution of the 280 Series, adding a ductile iron bearing cap rated 117% stronger than gray iron, an o-ring sealing configuration between the housing and bearing cap to improve clamp load, and an 80% increase in clutch pack steel disc thickness to resist premature tooth wear. Nine speed ratios cover both low- and high-speed applications. The hose is included with the assembly. Call us to confirm proper fit for your transmission and application.

Features

10-bolt mounting aperture, compatible with Allison and Caterpillar automatic transmissions
Hydraulic PowerShift (hot shift) engagement for continuous-duty operation
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
80% thicker steel discs in the clutch pack 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 shock load at start-up for select applications
Electronic Overspeed Control (EOC) protects driven equipment
Positive stop for driveline outputs eliminates oil seal damage from coupling
Hose included with assembly

Tech Specs

• Mounting Type: 10-Bolt
• Shift Type: PowerShift (Hydraulic)
• Transmission Compatibility: Allison and Caterpillar automatic transmissions
• Continuous Operation: Yes
• Speed Ratios: Nine (including low and high speeds)
• Continuous Torque (Series): 390 lb-ft / 529 Nm (verify actual rating for your application)
• Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
• Lubricant Options: Pressure Lube (P) or Wet Spline (W)
• 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.