The Chelsea 252 Series Power Take-Off (PTO), part number 252GMHVX-B5P82 or 252GMHVXB5P82, is a hydraulic-shift unit built for Allison 1000/2000/2400 series automatic transmissions and RAM trucks equipped with Aisin automatic transmissions. It mounts via a 6-bolt pattern and delivers power through a 1-inch round output shaft with a 1/4-inch key. Shaft power is rated at 11 HP (500 RPM) and 23 HP (1000 RPM), with intermittent torque in the 120 lb-ft range (verify actual torque on the application pages). The integrated cartridge valve and single hose connection simplify installation, and the housing is sized to pass through a floor access panel without dropping the exhaust system. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your specific chassis and transmission configuration.
The Chelsea 252 Series is designed for aerial, dump truck, tow and recovery, tire service, and municipal vocational applications. The compact housing slips through the floor access panel without requiring exhaust system removal, reducing installation time. The 252 Series is compatible with a range of Parker pump options offering flows from 1.6 gpm to 8.2 gpm at 1000 RPM, and the PTO and pump can be ordered together under a single part number. The SP252GMHVX-B5P82 cross-reference may also be used when sourcing this unit.
Features
Hydraulic shift operation with single hose connection and integrated cartridge valve
6-bolt mounting pattern for Allison 1000/2000/2400 series and RAM Aisin automatic transmissions
1-inch round output shaft with 1/4-inch key
Shaft power: 11 HP at 500 RPM, 23 HP at 1000 RPM
Intermittent torque up to 120 lb-ft (check application pages for actual torque ratings)
Controlled Compression Interface Gasket and Weather Tight Electrical Connectors for reliable sealing and connection integrity
Tech Specs
- Shift Type: Hydraulic
- Mounting Type: 6-Bolt
- Output Shaft Type: 1" Round with 1/4" Key
- Transmission Application: Allison 1000/2000/2400 Series, RAM (Aisin Automatic)
- 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)
Additional Information
The Chelsea 252 Series is designed for aerial, dump truck, tow and recovery, tire service, and municipal vocational applications. The compact housing slips through the floor access panel without requiring exhaust system removal, reducing installation time. The 252 Series is compatible with a range of Parker pump options offering flows from 1.6 gpm to 8.2 gpm at 1000 RPM, and the PTO and pump can be ordered together under a single part number. The SP252GMHVX-B5P82 cross-reference may also be used when sourcing this unit.
