Features
Ductile iron bearing cap, 117% stronger than gray iron, for increased durability
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 including both low and high speeds
Wet spline lubrication option provides 7 to 10 times greater shaft life
Electronic Overspeed Control (EOC) protects driven equipment; SmartStart reduces shock load at start-up
Positive stop for driveline outputs eliminates oil seal damage from coupling
Hose included - no separate order required
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic hot-shift)
- Compatible Transmissions: Allison and Caterpillar automatic transmissions (10-bolt aperture)
- Continuous Torque Rating: 390 lb-ft (529 Nm) - see application pages for actual ratings
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Speed Ratios: Nine ratios including low and high speeds
- Lubrication Options: Pressure Lube (P) or Wet Spline (W)
- Continuous Operation: Yes
Additional Information
The Chelsea 281 Series is suited for demanding markets including fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. Rotatable cast-iron flanges reduce interference issues and improve pump clearance. The SmartStart feature reduces shock load at engagement for applicable configurations, and the Electronic Overspeed Control (EOC) safeguards driven equipment. Parker documents covering this series include the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner Manual. Part number also referenced as SP281GGKVP-K5XD. Not sure this is your part? Give us a call.
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
