The Chelsea 281GCFJP-G5RK or 281GCFJPG5RK is a hydraulically shifted (PowerShift) Power Take-Off from Chelsea's 281 Series, designed for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar units. The 281 Series is an evolution of the 280 Series and carries a continuous duty torque rating up to 390 lb-ft (529 Nm). Key construction upgrades over its predecessor include a ductile iron bearing cap rated 117% stronger than gray iron, an O-ring sealing configuration between housing and bearing cap for improved clamp load, and clutch-pack steel discs increased 80% in thickness to resist premature tooth wear. Nine speed ratios cover both low and high-speed demands. Markets served include fire and rescue, truck cranes, pumper cleaner, and refuse applications. Call us to confirm proper fit for your transmission and application.
Features
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
Clutch pack steel discs are 80% thicker to resist premature tooth wear
Nine speed ratios including low and high speeds
Rotatable cast-iron flanges reduce interference and improve pump clearance
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
SmartStart reduces shock load at start-up; Electronic Overspeed Control (EOC) protects driven equipment
Hose included, no need to order separately
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Compatibility: Allison and Caterpillar automatic transmissions
- Continuous Torque: 390 lb-ft (529 Nm) - verify actual rating on application pages
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Speed Ratios: Nine (includes low and high)
- Lubrication: Pressure Lube or Wet Spline options
- 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.
