The Chelsea 252GDHVP-B5P71 or 252GDHVPB5P71 is a hydraulic-shift power take-off from the Chelsea 252 Series, designed for Allison 1000, 2000, and 2400 series automatic transmissions as well as Aisin automatic transmissions used in Dodge/RAM trucks. It mounts with a 6-bolt pattern and delivers output through an SAE A pump flange or driveline connection. The 252 Series integrates a cartridge valve and uses a single hose connection, simplifying installation compared to setups requiring remote solenoids and multiple hoses. The housing is designed to pass through a floor access panel without dropping the exhaust system. Rated for intermittent torque in the 101-200 lb-ft range; continuous operation is supported with a 30% de-rating. Call us to confirm proper fit for your transmission and chassis.
Features
Hydraulic shift operation
6-bolt transmission mounting
SAE A pump flange and driveline output options
Integrated cartridge valve with single hose connection
Designed for Allison 1000/2000/2400 and Aisin automatic transmissions in Dodge/RAM trucks
Housing designed to fit through floor access panel without removing exhaust
Tech Specs
- Shift Type: Hydraulic
- Mounting Type: 6-Bolt
- Output Type: SAE A Pump Flange, Driveline
- Output Shaft Options: Round Shaft (1-1/4" Key), SAE A (5/8" - 9T) Pump Spline, 3/4" - 11T Pump Spline
- Intermittent Torque: 101-200 lb-ft (check application pages for actual rating)
- Shaft Power: 11 HP at 500 RPM, 23 HP at 1000 RPM
- Continuous Operation: Yes, with 30% de-rating
- Compatible Transmissions: Allison 1000, 2000, 2400 Series; Aisin Automatic; Dodge/RAM
- Lubricant System: Pressure Lube
Additional Information
Parts Manual: Chelsea 252 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
