The Chelsea 272MKAJP-L5RK is a 272 Series 6-bolt hot-shift power take-off assembly designed for medium-duty applications across towing and recovery, aerial, construction, and water truck work. It mounts with a 6-bolt pattern and uses pneumatic or PowerShift (pneumatic/hydraulic) engagement, making it compatible with a wide range of transmissions including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. The 1-1/4" round output shaft with 5/16" key suits direct-mount pump configurations. Continuous torque capability reaches 300 lb-ft (407 Nm); intermittent torque is rated at 201-300 lb-ft (401-500 Nm). Shaft power output runs 29 HP at 500 RPM and 57 HP at 1,000 RPM. The 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series into one versatile platform. Call us to confirm proper fit for your transmission and application.
Features
6-bolt hot-shift mounting for broad transmission compatibility
1-1/4" round output shaft with 5/16" key
Pneumatic or PowerShift (pneumatic/hydraulic) shift type
Continuous torque rating: 300 lb-ft (407 Nm); intermittent torque: 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Compatible transmissions include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic, 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: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
