The Chelsea 252 Series Power Take-Off, part number 252GDHVX-B5P37 or 252GDHVXB5P37, is a hydraulic-shift PTO designed for Allison and RAM automatic transmissions. It mounts with a 6-bolt pattern and drives through a 1-inch round output shaft with key. Intermittent torque rating falls in the 101-200 lb-ft range (check application pages for your specific torque value). Shaft power is rated at 11 HP at 500 RPM and 23 HP at 1,000 RPM, with a maximum output of 25 HP. The integrated cartridge valve and single hose connection simplify installation, and weather-tight electrical connectors protect the hydraulic control circuit. The 252 Series housing is sized to pass through a floor access panel without dropping the exhaust system. Call us to confirm proper fit for your application.
The Chelsea 252 Series is designed for aerial, vocational, municipal, and other mobile equipment applications including tow and recovery trucks, tire service trucks, dump trucks, and aerial units. The compact housing is sized to slip through a floor access panel, eliminating the need to drop the exhaust system during installation. The 252 Series is compatible with a range of Parker pump options with flows from 1.6 gpm to 8.2 gpm at 1,000 RPM; the PTO and pump can be ordered together under a single part number.
Features
Hydraulic shift operation with single hose connection and integrated cartridge valve
6-bolt mounting for Allison and RAM automatic transmissions
1-inch round output shaft with key
Intermittent torque: 101-200 lb-ft (verify exact rating on Chelsea application pages)
Shaft power: 11 HP at 500 RPM, 23 HP at 1,000 RPM; 25 HP maximum output
Weather-tight electrical connectors and controlled compression interface gasket
Tech Specs
- Shift Type: Hydraulic
- Mounting Type: 6-Bolt
- Output Shaft Type: 1" Round with Key
- Transmission Manufacturer: Allison, RAM
- Intermittent Torque: 101-200 lb-ft / 101-200 Nm (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 1,000 RPM / 9 kW at 500 RPM, 17 kW at 1,000 RPM
Additional Information
The Chelsea 252 Series is designed for aerial, vocational, municipal, and other mobile equipment applications including tow and recovery trucks, tire service trucks, dump trucks, and aerial units. The compact housing is sized to slip through a floor access panel, eliminating the need to drop the exhaust system during installation. The 252 Series is compatible with a range of Parker pump options with flows from 1.6 gpm to 8.2 gpm at 1,000 RPM; the PTO and pump can be ordered together under a single part number.
Parts Manual: Chelsea 252 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
