281GGFJP-B3SV Chelsea PTO Assembly

The Chelsea 281GGFJP-B3SV or 281GGFJPB3SV is a 281 Series Power Take-Off Assembly designed for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar units. This hydraulically shifted (PowerShift) PTO supports continuous operation and carries a series continuous torque rating of 390 lb-ft (529 Nm). The 281 Series is an evolution of the 280 Series, incorporating 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 steel discs 80% thicker than the prior design. Nine speed ratios cover both low- and high-speed applications. A genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.

Features

10-Bolt aperture mount for Allison and Caterpillar automatic transmissions
Hydraulic PowerShift (hot shift) operation for engagement under load
390 lb-ft (529 Nm) series continuous torque rating
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Enhanced clutch pack with steel discs 80% thicker than prior design
Nine speed ratios including low and high speeds
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
Rotatable cast iron flanges reduce pump clearance interference
Positive Stop for driveline outputs eliminates oil seal damage from coupling
SmartStart reduces shock load at start-up for applicable configurations
Electronic Overspeed Control (EOC) protects driven equipment

Tech Specs

• Mounting Type: 10-Bolt aperture
• Shift Type: PowerShift (Hydraulic hot shift)
• Continuous Torque (series rating): 390 lb-ft (529 Nm)
• Continuous Operation: Yes
• Transmission Application: Allison and Caterpillar automatic transmissions
• Speed Ratios: Nine, including low and high speeds
• Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
• Output Shaft Options: 3/4 in. 11-tooth pump spline, SAE B 7/8 in. 13-tooth pump spline, SAE C 1-1/4 in. 14-tooth pump spline, DIN 5462 pump spline, 1410 companion flange, SmartStart round shaft (1-1/4 in. with 5/16 in. key)
• Lubrication: Pressure Lube (P) or Wet Spline (W)
• Shaft Power: 37 HP at 500 RPM, 74 HP at 1000 RPM

Additional Information

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