The Chelsea 272RCKUP-G3RK or 272RCKUPG3RK is a 272 Series medium-duty hot shift power take-off assembly built on a 6-bolt mounting pattern. The output shaft is a 1-1/4" round shaft with a 5/16" key. Shift options include pneumatic (air) and PowerShift (pneumatic/hydraulic), and the unit comes with an integral air control valve. Continuous torque capability reaches 300 lb-ft (407 Nm); intermittent torque is rated at 201-300 lb-ft (401-500 Nm). Shaft power output at 1,000 RPM is rated at 57 HP (43 kW). Compatible transmissions span a broad range including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. The 272 Series consolidates and supersedes the earlier 230, 231, 236, 238, 270, and 271 Series PTOs. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting pattern with rotatable flanges for flexible installation
Pneumatic (air) and PowerShift (pneumatic/hydraulic) shift options included
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent rating 201-300 lb-ft (401-500 Nm)
Shaft power output: 57 HP (43 kW) at 1,000 RPM
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Supersedes Chelsea 230, 231, 236, 238, 270, and 271 Series PTOs
Tech Specs
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Shift Type: Pneumatic (Air Shift), PowerShift (Pneumatic/Hydraulic)
- 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 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, Other
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
