The Chelsea 272RBKUP-G3RK or 272RBKUPG3RK is a 272 Series hot shift power take-off assembly with 6-bolt mounting and a 1-1/4" round output shaft with a 5/16" key. Shift type is pneumatic or PowerShift (pneumatic/hydraulic), and the unit includes an integral air control valve. The 272 Series is rated for intermittent torque of 201-300 lb-ft (401-500 Nm) and continuous torque up to 300 lb-ft (407 Nm; verify actual rating on application pages). Output power reaches 56+ HP (41-50 kW), with shaft power measured at 29 HP (21 kW) at 500 RPM and 57 HP (43 kW) at 1,000 RPM. Compatible transmission manufacturers include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, among others. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting for broad transmission compatibility across Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
1-1/4" round output shaft with 5/16" key
Pneumatic or PowerShift (pneumatic/hydraulic) hot shift with integral air control valve
Intermittent torque rating: 201-300 lb-ft (401-500 Nm); continuous torque up to 300 lb-ft (407 Nm)
Shaft power output: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Suited for aerial, towing and recovery, construction, and water truck applications
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft / 407 Nm (verify actual rating on application pages)
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP (41-50 kW)
- Shift Type: Pneumatic or PowerShift (Pneumatic/Hydraulic)
- 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, 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.
