The Chelsea 272XAAJP-G5RK or 272XAAJPG5RK is a 6-bolt hot shift power take-off from Chelsea's 272 Series, designed for medium-duty applications including aerial, towing and recovery, construction equipment, and water trucks. It mounts with a 6-bolt pattern and delivers continuous torque up to 300 lb-ft (407 Nm), with intermittent torque rated at 201-300 lb-ft (401-500 Nm). The output shaft is a 1-1/4" round shaft with a 5/16" key. Shift type is pneumatic (PowerShift), and the unit comes with an integral air control valve. Compatible transmissions include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting pattern for broad transmission compatibility
1-1/4" round output shaft with 5/16" key
Pneumatic (PowerShift) shift with integral air control valve
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power rated at 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
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
- 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)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other makes
Additional Information
The Chelsea 272 Series consolidates and replaces the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty hot shift PTOs into a single, updated platform. The series offers nine speed ratios and eighteen shift options. Direct-mount configurations include an optional Wet-Spline design for extended PTO and pump shaft service life. Driveshaft output versions are available with the Smart-Start option, engineered for high-torque start-up conditions. Flanges are rotatable for installation flexibility. Typical markets served include aerial work, towing and recovery, construction equipment, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
