281GDFJP-B5XV Chelsea PTO Assembly

The Chelsea 281GDFJP-B5XV or 281GDFJPB5XV is a 281 Series Power Take-Off designed for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar transmissions. It uses hydraulic (PowerShift) engagement, making it a hot-shift unit suited for continuous-duty operation. The 281 Series is an evolution of the Chelsea 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 for improved clamp load, and an 80% thicker clutch pack steel disc to resist premature tooth wear. Nine speed ratios cover both low and high-speed applications. Output options span SAE B and SAE C pump flanges, ISO 7652 pump flange, and driveline configurations. A genuine Chelsea part available from Pro Gear and Transmission. Call us to confirm proper fit for your transmission and application.

Features

Hydraulic (PowerShift) hot-shift engagement for 10-bolt automatic transmission apertures, including Allison and Caterpillar
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 80% thicker steel discs to resist premature tooth wear
Nine speed ratios available, including low and high-speed options
Wet Spline Lubrication option provides 7 to 10 times greater shaft life; Electronic Overspeed Control (EOC) protects driven equipment
SmartStart output reduces shock load at start-up for select applications; Positive Stop for driveline outputs eliminates oil seal damage from coupling

Tech Specs

• Mounting Type: 10-Bolt
• Shift Type: Hydraulic (PowerShift) Hot-Shift
• Continuous Operation: Yes
• Series Continuous Torque Rating: 390 lb-ft (529 Nm) - check application pages for actual torque rating
• Series Intermittent Torque Range: 301 to 400 lb-ft (501+ Nm)
• Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
• Speed Ratios: Nine, including low and high speeds
• Transmission Application: Allison, Caterpillar (10-bolt aperture)
• Lubrication Options: Pressure Lube (P), Wet Spline (W)

Additional Information

The Chelsea 281 Series is suited for demanding markets including fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. Series reference documents include the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual. Call Pro Gear and Transmission to confirm that part number 281GDFJP-B5XV matches your specific transmission model and output requirements.

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