The Chelsea 272 Series Power Take-Off Assembly, part number 272RBKUP-B3XD or 272RBKUPB3XD, is a 6-bolt hot-shift PTO with a 1-1/4" round output shaft and a 5/16" keyway. It supports pneumatic or PowerShift (pneumatic/hydraulic) engagement and delivers continuous torque up to 300 lb-ft (407 Nm), with intermittent torque in the 201-300 lb-ft (401-500 Nm) range. Shaft power output reaches 57 HP at 1,000 RPM. The 272 Series fits transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM platforms, making it one of the broadest-coverage medium-duty PTOs in the Chelsea lineup. Applications include aerial, construction, towing and recovery, and water truck service. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting configuration for broad transmission compatibility
Pneumatic or PowerShift (pneumatic/hydraulic) shift engagement
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 output: 57 HP (43 kW) at 1,000 RPM
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - check application pages for actual torque ratings
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" round with 5/16" keyway
- Shift Type: Pneumatic or PowerShift (Pneumatic/Hydraulic)
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1,000 RPM: 57 HP (43 kW)
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other select manufacturers
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
