The Chelsea 272NAAJP-A3XD is a 272 Series 6-bolt hot shift Power Take-Off assembly designed for medium-duty applications in aerial, construction, water truck, and towing and recovery service. The 272 Series supports up to 300 lb-ft of intermittent torque and is available with either pneumatic or hydraulic shift, with an integral air control valve included. The series offers nine speed ratios and eighteen shift configurations, giving fleet and equipment managers broad application flexibility. Wet-spline technology is optionally available for extended PTO and pump shaft life, and the Smart Start option addresses high-torque start-up conditions. This assembly is sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Chelsea 272 Series 6-bolt hot shift PTO Assembly
Up to 300 lb-ft intermittent torque rating
Pneumatic or hydraulic shift with integral air control valve
Nine speed ratios and eighteen shift configurations available in the series
Wet-spline technology option for extended PTO and pump shaft life
Smart Start option available for high-torque start-up conditions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque (Series): 201 to 300 lb-ft (401 to 500 Nm)
- Output Power (Series): 56+ HP (41 to 50 kW)
- Output Shaft Options (Series): Round shaft with 1 in. / 1/4 in. key, or round shaft with 1-1/4 in. / 5/16 in. key
- Integral Air Control Valve: Included
- Series: Chelsea 272
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series into a single medium-duty hot shift platform. It is used across aerial, construction equipment, water truck, towing and recovery, defense, and material handling applications. The series features rotatable flanges and a continuous-duty torque rating. Part number 272NAAJP-A3XD is also referenced as 272NAAJPA3XD. Not sure this is the right PTO for your truck or transmission? Give us a call at Pro Gear and Transmission and we will help you confirm proper fitment.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
