Features
Hydraulic PowerShift (hot shift) operation for use with automatic transmissions
10-bolt mounting aperture compatible with Allison and Caterpillar transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
Enhanced clutch pack with steel discs 80% thicker than previous design
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
Wet Spline Lubrication option provides 7 to 10 times greater shaft life
Nine speed ratios including low and high speeds
Electronic Overspeed Control (EOC) protects driven equipment
SmartStart reduces shock load at start-up for select applications
Rotatable cast-iron flanges reduce pump clearance interference
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic Hot Shift)
- Continuous Operation: Yes
- Transmission Compatibility: Allison (and Caterpillar) automatic transmissions
- Continuous Torque Rating: 390 lb-ft (529 Nm) - verify actual rating on application pages
- Intermittent Torque Range: 301 to 400 lb-ft (501+ Nm)
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 37 HP at 500 RPM / 74 HP at 1000 RPM
- Speed Ratios: Nine ratios including low and high speeds
- Output Types Available: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Lubrication: Pressure Lube (P) with Wet Spline option (W)
- Hose: Included
Additional Information
The Chelsea 281 Series is suited for demanding markets including fire and rescue, truck cranes, pumper cleaner, and refuse equipment. Reference documents include the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual. Part number 281GCFJP-B5SV is also referenced as SP281GCFJP-B5SV. Call us to confirm application fit before ordering.
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
