The Chelsea 272XKDAX-A3RK or 272XKDAXA3RK is a 272 Series 6-bolt hot shift Power Take-Off assembly. Part of Chelsea's medium-duty PTO lineup, the 272 Series supports up to 300 lb-ft of intermittent torque and is available with hydraulic or pneumatic air shift. The 6-bolt mounting configuration fits a wide range of vocational applications including aerial, construction equipment, towing and recovery, and water trucks. The series features rotatable flanges, an integral air control valve, and an optional wet-spline output for extended PTO and pump shaft service life. A Smart-Start option is available for high-torque start-up conditions. Call us to confirm proper fitment for your transmission and application.
Features
Chelsea 272 Series 6-bolt hot shift PTO Assembly
Intermittent torque rating: 201 to 300 lb-ft (401 to 500 Nm)
Hydraulic or pneumatic (air) shift with integral air control valve
Rotatable flanges for flexible installation
Wet-spline output 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: Hydraulic or Pneumatic (Air)
- Intermittent Torque: 201 to 300 lb-ft (401 to 500 Nm)
- Output Power: 56+ HP (41 to 50 kW)
- Output Shaft Options: Round Shaft 1 in. with 1/4 in. key; Round Shaft 1-1/4 in. with 5/16 in. key
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty PTOs into a single, updated platform. It offers 9 speed ratios and 18 shift options. Common vocational markets include aerial work platforms, construction equipment, towing and recovery, and water trucks. Direct-mount outputs support the optional wet-spline configuration; driveshaft outputs include the Smart-Start feature for high-torque engagement. The 272 Series carries the NMFC classification 128520 for hydraulic PTOs, pumps, and motors.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
