The Chelsea 272 Series Power Take-Off Assembly, part number 272ZKJWX-A3XD or 272ZKJWXA3XD, is a 6-bolt hot shift PTO built for medium-duty truck applications. It delivers continuous torque up to 300 lb-ft (407 Nm) and intermittent torque in the 201-300 lb-ft (401-500 Nm) range, with shaft power output of 29 HP at 500 RPM and 57 HP at 1,000 RPM. The output shaft is a 1-1/4" round design with a 5/16" key. Shift type is pneumatic or PowerShift (pneumatic/hydraulic), and the unit mounts on transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers. The 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Chelsea PTO lines into a single versatile platform. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting for broad transmission compatibility including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
Pneumatic or PowerShift (pneumatic/hydraulic) shift operation with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque up to 300 lb-ft (407 Nm); intermittent torque rated 201-300 lb-ft (401-500 Nm)
Shaft power output: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Consolidates Chelsea 230, 231, 236, 238, 270, and 271 series into one platform
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - Check application pages for actual torque ratings
- 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.
