The Chelsea 281 Series Power Take-Off, part number 281GCKVP-B5RY or 281GCKVPB5RY, is a hydraulically shifted hot-shift PTO engineered for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar transmissions. An evolution of the top-selling 280 Series, the 281 carries a continuous torque rating of 390 lb-ft (529 Nm) and delivers up to 74 HP at 1,000 RPM. Nine speed ratios cover both low and high operating ranges. The ductile iron bearing cap is 117% stronger than gray iron, and an 80% thicker clutch-pack disc stack resists premature tooth wear. SmartStart reduces shock load at engagement, and Electronic Overspeed Control (EOC) safeguards driven equipment. Call us to confirm proper fit for your transmission and application.
Features
Hydraulic PowerShift (hot-shift) operation for automatic transmissions with 10-bolt aperture
Ductile iron bearing cap, 117% stronger than gray iron predecessor
Enhanced clutch pack with 80% thicker steel discs to resist premature tooth wear
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibration
Nine speed ratios including low and high-speed ranges; continuous torque rating of 390 lb-ft (529 Nm)
SmartStart reduces engagement shock load; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic PowerShift (Hot-Shift)
- Compatible Transmissions: Allison and Caterpillar automatic transmissions
- Continuous Torque: 390 lb-ft (529 Nm)
- Shaft Power: 37 HP at 500 RPM, 74 HP at 1,000 RPM
- Speed Ratios: Nine (including low and high)
- Lubrication: Wet Spline option available (7 to 10 times greater shaft life)
- 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.
