The Chelsea 252 Series Power Take-Off, part number 252RMKUX-B5P37 or 252RMKUXB5P37, is a hydraulic-shift PTO engineered for Allison 1000, 2000, and 2400 series automatic transmissions, as well as Aisin automatic transmissions used in Dodge and RAM trucks. It mounts via a 6-bolt pattern and delivers output through an SAE A pump flange or driveline configuration. The 252 Series integrates a cartridge valve and single-hose hydraulic connection, eliminating the remote solenoid and multi-hose routing that slow installation. The housing is designed to pass through a floor access panel without dropping the exhaust system. Shaft power is rated at 11 HP at 500 RPM and 23 HP at 1000 RPM, with an intermittent torque range of 101 to 200 lb-ft. Continuous operation is supported with a 30% de-rating. Pro Gear and Transmission carries this genuine Chelsea part. Call us to confirm proper fit for your transmission and chassis.
Features
Chelsea 252 Series PTO, part number 252RMKUX-B5P37 or 252RMKUXB5P37
Hydraulic shift with integrated cartridge valve and single-hose connection
6-bolt mounting for Allison 1000, 2000, 2400 and Aisin automatic transmissions in Dodge and RAM trucks
Output options include SAE A pump flange and driveline
Shaft power: 11 HP at 500 RPM, 23 HP at 1000 RPM; intermittent torque 101-200 lb-ft
Housing designed to fit through floor access panel without removing the exhaust system
Tech Specs
- Shift Type: Hydraulic
- Mounting Type: 6-Bolt
- Output Type: SAE A Pump Flange, Driveline
- Transmission Compatibility: Allison 1000, 2000, 2400 Series; Aisin Automatic (Dodge/RAM)
- Shaft Power: 11 HP (500 RPM), 23 HP (1000 RPM)
- Intermittent Torque: 101 to 200 lb-ft
- Continuous Operation: Yes, with 30% de-rating
- Output Shaft Options: Round Shaft (1" - 1/4" Key), SAE A (5/8" - 9T) Pump Spline, 3/4" - 11T Pump Spline
Additional Information
Parts Manual: Chelsea 252 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
