The Chelsea 281GTFJP-D5RK or 281GTFJPD5RK is a 281 Series hydraulically shifted hot-shift Power Take-Off built for automatic transmissions with a 10-bolt aperture, commonly found on Allison transmissions. The 281 Series delivers a single, continuous duty torque rating and offers nine speed ratios covering both low and high speed ranges. The ductile iron bearing cap is 117% stronger than gray iron, and an o-ring sealing configuration between the housing and bearing cap reduces vibrational effects while improving clamp load. The clutch pack uses steel discs that are 80% thicker than the previous generation, directly addressing premature tooth wear. Rotatable cast iron flanges reduce interference clearance issues, and a Positive Stop feature on driveline outputs eliminates oil seal damage from coupling. Call us to confirm proper fit for your application.
Features
Ductile Iron Bearing Cap rated 117% stronger than gray iron for improved durability
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 the previous generation
Nine speed ratios including low and high-speed selections
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
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Compatibility: Allison automatic transmissions (10-bolt aperture)
- Continuous Operation: Yes
- Speed Ratios: Nine, including low and high speed
- Lubrication: Wet Spline option available
- Output Types (series): SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Series Continuous Torque Rating: 390 lb-ft (529 Nm) - verify actual rating on application pages
- Series Intermittent Torque: 301 to 400 lb-ft range
- Series Output Power: 56+ HP (51+ kW)
- Part Number: 281GTFJP-D5RK or 281GTFJPD5RK
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
