The Chelsea 272 Series Power Take-Off Assembly, part number 272RMKUP-B3RK or 272RMKUPB3RK, is a 6-bolt hot shift PTO designed for medium-duty hydraulic and pneumatic applications. It mounts to a wide range of transmissions including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM units. The 1-1/4" round output shaft uses a 5/16" key drive, and the unit supports intermittent torque in the 201-300 lb-ft range with continuous torque rated up to 300 lb-ft (verify on Chelsea application pages). Shift is pneumatic or PowerShift (pneumatic/hydraulic). Output power reaches 56+ HP at qualifying RPM. The 272 Series consolidates earlier Chelsea medium-duty PTO lines into one versatile platform used in aerial, construction, towing and recovery, and water truck applications. Call us to confirm proper fit for your transmission and application.
Features
6-bolt hot shift mounting compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
1-1/4" round output shaft with 5/16" key drive
Pneumatic or PowerShift (pneumatic/hydraulic) shift operation
Intermittent torque rating: 201-300 lb-ft (401-500 Nm); continuous torque up to 300 lb-ft (407 Nm) -- verify on Chelsea application pages
Output power: 56+ HP / 41-50 kW; shaft power at 1000 RPM: 57 HP / 43 kW
Consolidates Chelsea 230, 231, 236, 238, 270, and 271 series into one medium-duty platform
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: Up to 300 lb-ft / 407 Nm (verify on Chelsea application pages)
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" round with 5/16" key
- Output Power: 56+ HP / 41-50 kW
- Shaft Power: 500 RPM: 29 HP / 21 kW; 1000 RPM: 57 HP / 43 kW
- Shift Type: Pneumatic or PowerShift (Pneumatic/Hydraulic)
- Compatible Transmissions: 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.
