The Chelsea 272RCKUP-G3BD or 272RCKUPG3BD is a 272 Series hot shift power take-off assembly with a 6-bolt mounting configuration and a 1-1/4" round output shaft with a 5/16" key. It operates via pneumatic or PowerShift (pneumatic/hydraulic) shifting and includes an integral air control valve, so no separate valve body is required. The 272 Series consolidates multiple earlier Chelsea medium-duty PTO lines into one platform, offering continuous torque rated at 300 lb-ft (407 Nm) with an intermittent range of 201-300 lb-ft (401-500 Nm). Shaft power output reaches 57 HP (43 kW) at 1,000 RPM. Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions. A genuine Chelsea part sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 PTO lines into a single versatile medium-duty platform. The series offers nine speed ratios and eighteen shift options, covering the most popular direct-mount and driveshaft output configurations. Direct-mount outputs support the optional Wet-Spline lubrication system for reduced wear on the PTO and pump shaft. Driveshaft outputs support the Smart Start option, which buffers high-torque engagement for applications prone to shock loading at start-up. Common markets for this series include aerial work platforms, construction equipment, water trucks, and towing and recovery vehicles.
Features
6-bolt mounting for broad transmission compatibility including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
1-1/4" round output shaft with 5/16" key
Pneumatic or PowerShift (pneumatic/hydraulic) shift operation
Integral air control valve included
Continuous-duty torque rating: 300 lb-ft (407 Nm); intermittent: 201-300 lb-ft (401-500 Nm)
Smart Start option for high-torque start-up conditions; Wet-Spline option available for extended shaft life
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic / PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Continuous Torque: 300 lb-ft (407 Nm) - Check Application Pages for Actual Torque Ratings
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- 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)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and others
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 PTO lines into a single versatile medium-duty platform. The series offers nine speed ratios and eighteen shift options, covering the most popular direct-mount and driveshaft output configurations. Direct-mount outputs support the optional Wet-Spline lubrication system for reduced wear on the PTO and pump shaft. Driveshaft outputs support the Smart Start option, which buffers high-torque engagement for applications prone to shock loading at start-up. Common markets for this series include aerial work platforms, construction equipment, water trucks, and towing and recovery vehicles.
