The Chelsea 272MDAJP-K3XD or 272MDAJPK3XD is a 272 Series hot shift power take-off assembly from Parker Chelsea, built on a 6-bolt mounting pattern. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into one platform, supporting up to 300 lb-ft of intermittent torque and continuous-duty operation. Shift options include pneumatic (air) or hydraulic actuation, and the series features an integral air control valve. Output shaft options within the 272 Series span 1-inch round with 1/4-inch key and 1-1/4-inch round with 5/16-inch key configurations. Rotatable flanges and an optional wet-spline design extend PTO and pump shaft service life. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 272 Series 6-bolt hot shift PTO assembly
Up to 300 lb-ft intermittent torque capacity
Pneumatic (air) or hydraulic shift actuation
Integral air control valve included
Rotatable flanges for flexible installation
Wet-spline option available for extended component life
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Shaft Options: 1" round with 1/4" key; 1-1/4" round with 5/16" key
- Output Power: 56+ HP (41-50 kW)
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
- NMFC Class: 128520 - Hydraulic PTOs, Pumps, Motors
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty hot shift PTOs into a single platform. The series offers nine speed ratios and eighteen shift options, covering the most common direct-mount and driveshaft output configurations. Direct-mount outputs are available with the wet-spline option for longer PTO and pump shaft service life. Driveshaft outputs include the Smart-Start feature for high-torque start-up conditions. Typical application markets include aerial, towing and recovery, construction equipment, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
