The Chelsea 272XBAJX-A3XD or 272XBAJXA3XD is a 272 Series hot shift, 6-bolt power take-off assembly designed for medium-duty applications across aerial, construction, towing and recovery, and water truck markets. Output is through a 1-1/4" round shaft with a 5/16" key. Shift type is pneumatic (PowerShift pneumatic/hydraulic). The 272 Series delivers continuous torque up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range, with output power of 56+ HP (41-50 kW). Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, among others. Call us to confirm proper fit for your specific transmission and application.
Interchanges:
- 1450-272XBAJXA3XD
- CHE-272XBAJX-A3XD
Features
272 Series 6-bolt hot shift power take-off, part number 272XBAJX-A3XD or 272XBAJXA3XD
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power 56+ HP (41-50 kW); shaft power 57 HP at 1,000 RPM
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions, among others
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - check application pages for actual torque ratings
- Mounting Type: 6-Bolt
- Mounting Bolt Hole Quantity: 6
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series into a single medium-duty hot shift platform. The 272 Series offers nine speed ratios and eighteen shift options. Direct mount configurations are available with optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start feature for high-torque start-up conditions. Flanges are rotatable for flexible installation. This series is used in aerial, construction equipment, towing and recovery, water truck, material handling, and defense applications.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
