The Chelsea 252 Series Power Take-Off Assembly, part number 252RDKUX-B5XE or 252RDKUXB5XE, is a hydraulic-shift PTO built for Allison 1000/2000/2400 series automatic transmissions and RAM truck applications. It mounts via a 6-bolt pattern and delivers a 1-inch round output shaft with a 1/4-inch key. Intermittent torque is rated at 120 lb-ft (163 Nm); check application pages for your specific torque requirement. Shaft power output is 11 HP at 500 RPM and 23 HP at 1000 RPM. The integrated cartridge valve and single-hose connection reduce installation time, and the housing is designed to pass through a floor access panel without requiring exhaust system removal. A genuine Chelsea part sold by Pro Gear and Transmission. Call us to confirm proper fit for your transmission and chassis.

• Shift Type: Hydraulic
• Mounting Type: 6-Bolt
• Output Shaft Type: 1" Round with 1/4" Key
• Transmission Manufacturer: Allison, RAM
• Intermittent Torque: 120 lb-ft / 163 Nm (check application pages for actual torque ratings)
• Output Power: 25 HP and below / 20 kW and below
• Shaft Power: 11 HP at 500 RPM, 23 HP at 1000 RPM / 9 kW at 500 RPM, 17 kW at 1000 RPM

The 252 Series is suited for aerial, vocational, municipal, tow and recovery, tire service, and dump truck applications. The housing profile is designed to fit through a standard floor access panel, eliminating the need to drop the exhaust system during installation. Compatible Parker pumps are available separately with flows from 1.6 gpm to 8.2 gpm at 1000 RPM; the PTO and pump can be ordered together under a single part number.