The Chelsea 272 Series Power Take-Off Assembly, part number 272XCAJX-P5BD or 272XCAJXP5BD, is a 6-bolt hot-shift PTO built for medium-duty applications in aerial, construction, towing and recovery, and water truck service. It mounts to transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM platforms. The 1-1/4" round output shaft uses a 5/16" key and is pressure-lubed per the P-series designation. Shift is pneumatic or PowerShift (pneumatic/hydraulic), with an integral air control valve included. The 272 Series carries a continuous torque rating up to 300 lb-ft (407 Nm) and an intermittent torque range of 201-300 lb-ft (401-500 Nm). Output power exceeds 56 HP (41-50 kW). Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting configuration for broad transmission compatibility
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key, pressure-lube configuration
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 at 1,000 RPM: 57 HP (43 kW)
Compatible transmission manufacturers: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key, Pressure Lube
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: Up to 300 lb-ft (407 Nm) - Check Application Pages for Actual Torque Ratings
- 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)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
Additional Information
The Chelsea 272 Series consolidates and replaces earlier Chelsea medium-duty hot-shift PTO lines including the 230, 231, 236, 238, 270, and 271 Series. The 272 Series offers 9 speed ratios and 18 shift options. Rotatable flanges allow flexible installation positioning. The optional Wet-Spline design extends PTO and pump shaft service life. Smart-Start capability is available for high-torque start-up conditions. Typical application markets include aerial work platforms, construction equipment, towing and recovery, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
