The Chelsea 252RMKUX-B5XE or 252RMKUXB5XE is a 252 Series Power Take-Off Assembly designed for Allison 1000/2000/2400 series automatic transmissions and RAM truck applications. It mounts via a 6-bolt pattern and shifts hydraulically, with a 1-inch round output shaft with key. Output power runs up to 25 HP (20 kW), with shaft power rated at 11 HP (500 RPM) and 23 HP (1000 RPM). Intermittent torque is rated at 120 lb-ft (163 Nm) - check application pages for actual torque ratings for your specific installation. The integrated cartridge valve and single hose connection reduce installation time, and weather-tight electrical connectors protect the solenoid circuit. A genuine Chelsea part sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 252 Series is designed for vocational and municipal equipment markets including tow and recovery, tire service trucks, dump trucks, and aerial applications. The compact housing is sized to slip through a floor access panel without dropping the exhaust system, simplifying installation on Allison-equipped chassis. The 252 Series supports continuous operation with a 30% de-rating applied.
Features
Hydraulic shift, 6-bolt mounting pattern
1-inch round output shaft with key
Intermittent torque: 120 lb-ft (163 Nm) - verify rating on application pages
Shaft power: 11 HP at 500 RPM, 23 HP at 1000 RPM
Single hose connection with integrated cartridge valve simplifies installation
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: 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 (500 RPM), 23 HP (1000 RPM) / 9 kW (500 RPM), 17 kW (1000 RPM)
Additional Information
The Chelsea 252 Series is designed for vocational and municipal equipment markets including tow and recovery, tire service trucks, dump trucks, and aerial applications. The compact housing is sized to slip through a floor access panel without dropping the exhaust system, simplifying installation on Allison-equipped chassis. The 252 Series supports continuous operation with a 30% de-rating applied.
