The Chelsea 281 Series Power Take-Off Assembly, part number 281GCFJP-B8XV or 281GCFJPB8XV, is a hydraulically shifted hot-shift PTO designed for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar transmissions. The 281 Series is an evolution of the 280 Series, featuring a ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap to improve clamp load and reduce vibrational effects from modern engine designs. The clutch pack uses steel discs 80% thicker than the previous generation to resist premature tooth wear. Nine speed ratios cover both low and high-speed applications. Electronic Overspeed Control (EOC) is available to protect driven equipment. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Ductile iron bearing cap rated 117% stronger than gray iron for increased durability
O-ring sealing configuration between housing and bearing cap improves clamp load and reduces vibrational effects
Enhanced clutch pack with steel discs 80% thicker than the previous generation to resist premature tooth wear
Nine speed ratios including low and high speeds
Rotatable cast-iron flanges reduce interference and improve pump clearance
Electronic Overspeed Control (EOC) protects driven equipment; SmartStart option reduces shock load at start-up
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: Hydraulic (PowerShift hot-shift)
- Compatible Transmissions: Allison and Caterpillar automatic transmissions (10-bolt aperture)
- Continuous Torque: 390 lb-ft (529 Nm) - verify actual rating on application page
- Output Types: SAE B pump flange, SAE C pump flange, ISO 7652 pump flange, driveline
- Speed Ratios: Nine, including low and high speeds
- Lubrication: Pressure lube or wet spline option (wet spline provides 7 to 10 times greater shaft life)
- Continuous Operation: Yes
- Part Number: 281GCFJP-B8XV or 281GCFJPB8XV
Additional Information
Parts manual and diagrams: Chelsea 281 Series PTO parts list with prices
