The Chelsea 281 Series Power Take-Off, part number 281GMFJP-B5XV or 281GMFJPB5XV, is a hydraulically shifted (PowerShift) hot-shift PTO engineered for automatic transmissions with a 10-bolt aperture, including Allison and Caterpillar transmissions. This series carries a continuous torque rating of 390 lb-ft (529 Nm) and offers nine speed ratios spanning both low and high ranges. An evolution of the Chelsea 280 Series, the 281 incorporates a ductile iron bearing cap rated 117% stronger than gray iron, an O-ring sealing configuration between the housing and bearing cap, and 80% thicker steel discs in the clutch pack. Cross-referenced with 280GMFJP-B5XV and 280GMFJPB5XV. Call us to confirm proper fit for your transmission and output configuration.
Features
Chelsea 281 Series hydraulic PowerShift (hot-shift) PTO, 10-bolt mounting aperture for Allison and Caterpillar automatic transmissions
Continuous torque rating: 390 lb-ft (529 Nm)
Nine speed ratios, including low and high speeds
Ductile iron bearing cap, 117% stronger than gray iron, with O-ring sealing between housing and cap
Enhanced clutch pack with 80% thicker steel discs to resist premature tooth wear
Wet Spline Lubrication option provides 7 to 10 times greater shaft life; SmartStart reduces shock load at start-up; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Shift Type: PowerShift (Hydraulic) Hot-Shift
- Mounting Type: 10-Bolt
- Compatible Transmissions: Allison and Caterpillar automatic transmissions
- Continuous Torque Rating: 390 lb-ft (529 Nm)
- Speed Ratios: Nine, including low and high speeds
- Output Types: SAE B Pump Flange, SAE C Pump Flange, ISO 7652 Pump Flange, Driveline
- Lubrication Options: Pressure Lube (P), Wet Spline (W)
- Cross Reference: 280GMFJP-B5XV, 280GMFJPB5XV, 3252PME633IC
Additional Information
Parts Manual: Chelsea 281 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
