The Chelsea 272 Series Power Take-Off Assembly, part number 272XKAJX-V3BD or 272XKAJXV3BD, is a hot-shift 6-bolt PTO with a 1-1/4" round output shaft and 5/16" keyway. It operates with pneumatic or PowerShift (pneumatic/hydraulic) actuation and comes with an integral air control valve. The 272 Series is rated for continuous torque up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range; check application pages for actual de-rated torque ratings. Shaft power output is 29 HP at 500 RPM and 57 HP at 1,000 RPM. This series is compatible with transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, among others. Call us to confirm proper fit for your application.
Features
6-bolt mounting configuration for broad transmission compatibility
Pneumatic or PowerShift (pneumatic/hydraulic) hot-shift actuation with integral air control valve
1-1/4" round output shaft with 5/16" keyway
Continuous torque rating up to 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 transmission manufacturers 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 de-rated 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 Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and others
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, with rotatable flanges for flexible installation. Direct-mount outputs feature an optional Wet-Spline configuration for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start option, designed for high-torque start-up conditions. Typical markets for the 272 Series include towing and recovery, aerial work platforms, 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.
