The Chelsea 272 Series Power Take-Off, part number 272XGAJP-B3XD or 272XGAJPB3XD, is a 6-bolt hot-shift PTO built around the 272 Series platform, which consolidates the older 230, 231, 236, 238, 270, and 271 series into a single versatile unit. It features a 1-1/4" round output shaft with a 5/16" key and supports both pneumatic (air) and PowerShift (pneumatic/hydraulic) engagement. Continuous torque for the 272 Series reaches 300 lb-ft (407 Nm); intermittent torque is rated at 201-300 lb-ft (401-500 Nm). Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. Output power exceeds 56 HP at applicable shaft speeds. Call us to confirm proper fit for your application.
Features
6-bolt mounting, compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Pneumatic (air) shift and PowerShift (pneumatic/hydraulic) shift options
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 of 56+ HP (41-50 kW); shaft power rated at 29 HP at 500 RPM and 57 HP at 1,000 RPM
Integral air control valve; rotatable flanges for flexible installation
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air Shift), PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Continuous Torque: 300 lb-ft / 407 Nm (check application pages for actual torque ratings)
- Intermittent Torque: 201-300 lb-ft / 401-500 Nm
- Output Power: 56+ HP / 41-50 kW
- Shaft Power at 500 RPM: 29 HP / 21 kW
- Shaft Power at 1,000 RPM: 57 HP / 43 kW
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
Additional Information
The Chelsea 272 Series consolidates multiple legacy Chelsea PTO series (230, 231, 236, 238, 270, and 271) into one platform. The series offers nine speed ratios and eighteen shift options, making it adaptable across a wide range of medium-duty truck applications including aerial, construction equipment, towing and recovery, and water trucks. The 272 Series features an integral air control valve as standard, along with rotatable flanges for installation flexibility. An optional Wet-Spline design is available within the 272 Series for extended PTO and pump shaft service life. The Smart-Start option is available for high-torque startup conditions on driveshaft output configurations.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
