Chelsea part number 272RKKUP-B3RB or 272RKKUPB3RB is a 272 Series Power Take-Off Assembly built on Chelsea's hot-shift 6-bolt platform. The output shaft is a 1-1/4" round shaft with a 5/16" keyway. Shift is pneumatic (air), with PowerShift (pneumatic/hydraulic) capability and an integral air control valve included. Continuous torque rating reaches 300 lb-ft (407 Nm); intermittent torque falls in the 201-300 lb-ft range (401-500 Nm). Output power is rated at 56+ HP (41-50 kW). The 272 Series is compatible with transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, making it a flexible fit across towing and recovery, aerial, construction, and water truck applications. Call us to confirm proper fitment for your specific transmission and application.
Features
6-bolt mounting configuration for broad transmission compatibility
Pneumatic (air) shift with integral air control valve; PowerShift (pneumatic/hydraulic) capable
1-1/4" round output shaft with 5/16" keyway
Continuous torque rating: 300 lb-ft (407 Nm); intermittent torque: 201-300 lb-ft (401-500 Nm)
Output power: 56+ HP (41-50 kW); shaft power at 1,000 RPM: 57 HP (43 kW)
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" Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 500 RPM: 29 HP (21 kW); 1,000 RPM: 57 HP (43 kW)
- Shift Type: Pneumatic (Air Shift); PowerShift (Pneumatic/Hydraulic)
- 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.
