The Chelsea 272 Series Power Take-Off Assembly, part number 272MDAJP-B5BD or 272MDAJPB5BD, is a 6-bolt hot shift PTO designed for medium-duty truck applications including aerial, construction equipment, water trucks, and towing and recovery. The 272 Series supports intermittent torque up to 300 lb-ft and is available with pneumatic or hydraulic shift. It features an integral air control valve and rotatable flanges. The 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 series into a single versatile platform with nine speed ratios and eighteen shift options. Output shaft options in the series include round shaft configurations. Call us to confirm proper fitment for your transmission and application.
Features
Chelsea 272 Series 6-bolt mounting configuration
Hot shift design with pneumatic or hydraulic shift options
Integral air control valve included
Intermittent torque rating up to 300 lb-ft (401-500 Nm)
Rotatable flanges for flexible installation
Consolidates 230, 231, 236, 238, 270, and 271 series into one platform
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Speed Ratios: 9 available
- Shift Options: 18 available
- Output Shaft Type: Round shaft (series offers 1" with 1/4" key and 1-1/4" with 5/16" key options)
Additional Information
The Chelsea 272 Series consolidates six earlier PTO series - the 230, 231, 236, 238, 270, and 271 - into a single medium-duty hot shift platform. Direct-mount configurations in this series offer an optional Wet-Spline feature for extended PTO and pump shaft service life. Driveshaft output configurations are available with the Smart-Start option, which is designed for high-torque start-up conditions. Common markets for the 272 Series include aerial lift, construction equipment, towing and recovery, and water trucks. Part number 272MDAJP-B5BD is also referenced as SP272MDAJP-B5BD.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
