The Chelsea 272 Series PTO Assembly, part number 272XMDAX-V5RK or 272XMDAXV5RK, is a 6-bolt hot shift power take-off built for medium-duty truck applications. The 272 Series consolidates multiple earlier Chelsea PTO lines into a single versatile platform, offering nine speed ratios and eighteen shift configurations. This unit supports both pneumatic and hydraulic shift and includes an integral air control valve. The series handles intermittent torque from 201 to 300 lb-ft (401-500 Nm) and delivers over 56 HP of output power. Common applications include aerial, construction equipment, water trucks, and towing and recovery. Flanges are rotatable for flexible installation. Call us to confirm proper fit for your transmission and application.
Features
Chelsea 272 Series 6-bolt hot shift PTO
Intermittent torque rating: 201 to 300 lb-ft (401 to 500 Nm)
Output power: 56+ HP (41 to 50 kW)
Available with pneumatic or hydraulic shift; integral air control valve included
Rotatable flanges for flexible mounting
Wet-Spline option available for extended PTO and pump shaft service life
Smart-Start option for high-torque start-up conditions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- 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
- Speed Ratios: 9 available
- Shift Configurations: 18 available
- Lubricant Codes: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Additional Information
The Chelsea 272 Series consolidates several earlier Chelsea medium-duty PTO lines, including the 230, 231, 236, 238, 270, and 271 Series, into a single platform. Typical markets served include aerial, construction equipment, water trucks, towing and recovery, and defense. The direct mount output options are compatible with Wet-Spline technology for extended component life, while driveshaft output configurations support the Smart-Start feature for demanding high-torque engagement conditions.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
