The Chelsea 252GDHVX-B51121 or 252GDHVXB51121 is a hydraulic-shift power take-off from the Chelsea 252 Series, built for Allison 1000/2000/2400 series automatic transmissions and RAM trucks with Aisin automatic transmissions. It mounts via a 6-bolt pattern and delivers up to 25 HP (20 kW) output, with shaft power rated at 11 HP (500 RPM) and 23 HP (1000 RPM). The 1-inch round output shaft uses a 1/4-inch key. Intermittent torque is rated at 120 lb-ft (163 Nm) - check application pages for actual torque ratings on your specific installation. The integrated cartridge valve and single-hose connection simplify installation, and the housing is designed to pass through the floor access panel without dropping the exhaust system. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 252 Series PTO is suited for aerial, tow and recovery, tire service, dump truck, and vocational/municipal equipment applications. The housing profile allows installation through the cab floor access panel without removing the exhaust system. Parker offers a range of compatible pumps with flows from 1.6 gpm to 8.2 gpm at 1000 RPM that can be ordered together with the PTO as a single part number. The unit is also referenced as part number SP252GDHVXB51121.
Features
Hydraulic shift operation
6-bolt mounting pattern
1-inch round output shaft with 1/4-inch key
Intermittent torque: 120 lb-ft (163 Nm) - verify against application pages for your installation
Shaft power: 11 HP at 500 RPM, 23 HP at 1000 RPM
Single hose connection with integrated cartridge valve for simplified installation
Controlled Compression Interface Gasket
Weather-tight electrical connectors
Fits Allison 1000/2000/2400 series and RAM/Aisin automatic transmissions
Tech Specs
- Shift Type: Hydraulic
- Mounting Type: 6-Bolt
- Output Shaft Type: 1" Round with 1/4" Key
- Transmission Fitment: 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 (20 kW) and below
- Shaft Power: 11 HP (9 kW) at 500 RPM; 23 HP (17 kW) at 1000 RPM
- Dimensions (H x W x L): 15.75 in. x 12.5 in. x 14 in.
Additional Information
The Chelsea 252 Series PTO is suited for aerial, tow and recovery, tire service, dump truck, and vocational/municipal equipment applications. The housing profile allows installation through the cab floor access panel without removing the exhaust system. Parker offers a range of compatible pumps with flows from 1.6 gpm to 8.2 gpm at 1000 RPM that can be ordered together with the PTO as a single part number. The unit is also referenced as part number SP252GDHVXB51121.
Parts Manual: Chelsea 252 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
