The Chelsea 252GMHVP-B51449 or 252GMHVPB51449 is a hydraulic-shift power take-off from the Chelsea 252 Series, engineered for Allison 1000/2000/2400 series automatic transmissions and RAM trucks with compatible automatic transmissions. It mounts via a 6-bolt pattern and delivers a 1-inch round output shaft with a 1/4-inch key. Shaft power output reaches 11 HP at 500 RPM and 23 HP at 1000 RPM, with an intermittent torque rating of 120 lb-ft (check application pages for your actual torque rating). Installation is simplified by an integrated cartridge valve that requires only a single hose connection, eliminating the need to route multiple hydraulic lines. The compact housing is designed to pass through a floor access panel without dropping the exhaust system. Call us to confirm proper fit for your application.
The 252 Series PTO is suited for vocational and municipal equipment applications including tow and recovery trucks, tire service trucks, dump trucks, and aerial equipment. A selection of Parker pumps with flows from 1.6 gpm to 8.2 gpm at 1000 RPM is available for use with this series. The PTO and pump can be ordered together under a single part number.
Features
Hydraulic shift operation with integrated cartridge valve and single hose connection
6-bolt mounting pattern for Allison 1000/2000/2400 series and RAM 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: 120 lb-ft (verify actual rating on application pages)
Weather-tight electrical connectors and controlled compression interface gasket for reliable sealing
Tech Specs
- Intermittent Torque: 120 lb-ft / 163 Nm (check application pages for actual torque rating)
- Shift Type: Hydraulic
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-inch round with 1/4-inch key
- 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)
- Compatible Transmissions: Allison 1000/2000/2400 series, RAM automatic transmissions
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The 252 Series PTO is suited for vocational and municipal equipment applications including tow and recovery trucks, tire service trucks, dump trucks, and aerial equipment. A selection of Parker pumps with flows from 1.6 gpm to 8.2 gpm at 1000 RPM is available for use with this series. 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.
