The Chelsea 281 Series Power Take-Off, part number 281GDKVP-B5RF or 281GDKVPB5RF, is a hydraulically shifted hot-shift PTO designed for automatic transmissions with a 10-bolt aperture, including Allison transmissions. The 281 Series is an evolution of the 280 Series platform, featuring 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 clutch pack steel discs that are 80% thicker than the previous generation to resist premature tooth wear. Nine available speed ratios and a single continuous-duty torque rating make this a versatile choice for fire and rescue, refuse, truck crane, and pumper-cleaner applications. Call us to confirm proper fit for your specific transmission and application.
Features
Hydraulic PowerShift (hot-shift) operation for use with automatic transmissions
10-bolt mounting aperture, compatible with Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap for improved clamp load
Clutch pack steel discs increased 80% in thickness to resist premature tooth wear
Nine speed ratios available; rated for continuous-duty operation
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (Hot-Shift)
- Transmission Compatibility: Allison automatic transmissions
- Continuous Operation: Yes
- Continuous Torque: 390 lb-ft (529 Nm) - verify actual rating on application pages
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 37 HP at 500 RPM, 74 HP at 1000 RPM
- Output Types Available: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Lubrication: Pressure Lube and Wet Spline options
