281GPFJW-B8RY Chelsea PTO Assembly

The Chelsea 281 Series Power Take-Off assembly, part number 281GPFJW-B8RY or 281GPFJWB8RY, is a hydraulically shifted hot-shift PTO designed for automatic transmissions with a 10-bolt aperture, including Allison transmissions. The 281 Series is an evolution of the 280 Series platform, featuring a ductile iron bearing cap that is 117% stronger than gray iron, an o-ring sealing configuration between the housing and bearing cap for improved clamp load, and clutch pack steel discs that are 80% thicker than the predecessor design. The series supports continuous operation and is used across fire and rescue, refuse, truck crane, and pumper cleaner applications. Call us to confirm proper fit for your specific transmission and application.

Features

Chelsea 281 Series hydraulic PowerShift (hot-shift) PTO
10-bolt mounting aperture for Allison automatic transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring seal between housing and bearing cap for improved clamp load
Clutch pack steel discs increased 80% in thickness over prior design
Rated for continuous-duty operation across fire/rescue, refuse, and crane applications

Tech Specs

• Mounting Type: 10-Bolt
• Shift Type: Hydraulic PowerShift (Hot-Shift)
• Continuous Operation: Yes
• Transmission Compatibility: Allison automatic transmissions
• Series: Chelsea 281

Additional Information

The Chelsea 281 Series is documented in the 281/288 Series Parts List (HY25-2281-M1/US) and the 267/281/288/871/878 Series Owner's Manual. The series also supports optional Wet Spline lubrication for extended shaft life and SmartStart technology to reduce shock load at start-up. Electronic Overspeed Control (EOC) is available to protect driven equipment. Rotatable cast iron flanges allow output positioning to improve pump clearance. Nine speed ratios are available across the series, including low and high-speed options.