The Chelsea 272XDESX-P3XD or 272XDESXP3XD is a 6-bolt hot shift power take-off assembly from the Chelsea 272 Series, designed for medium-duty truck and vocational applications. It ships with a 1-1/4" round output shaft with a 5/16" key, and supports both pneumatic (air shift) and PowerShift (pneumatic/hydraulic) engagement. Intermittent torque rating runs 201-300 lb-ft (401-500 Nm), with a continuous torque rating of 300 lb-ft (407 Nm) subject to application-specific de-rating. Output power reaches 56+ HP (41-50 kW); at 1,000 RPM the shaft delivers 57 HP (43 kW). The 272 Series covers Towing and Recovery, Aerial, Construction, and Water Truck markets, and fits transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM. Call us to confirm proper fit for your transmission and application.
Features
6-bolt hot shift mounting compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
1-1/4" round output shaft with 5/16" key
Pneumatic (air shift) and PowerShift (pneumatic/hydraulic) engagement options
Intermittent torque: 201-300 lb-ft (401-500 Nm); continuous torque: 300 lb-ft (407 Nm) - verify with application pages
Output power: 56+ HP (41-50 kW); shaft power at 1,000 RPM: 57 HP (43 kW)
Suited for Towing and Recovery, Aerial, Construction Equipment, and Water Truck applications
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft / 407 Nm (check application pages for actual de-rated torque ratings)
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air Shift) / PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Output Power: 56+ HP (41-50 kW)
- Shaft Power at 500 RPM: 29 HP (21 kW); at 1,000 RPM: 57 HP (43 kW)
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
The Chelsea 272 Series consolidates and replaces the earlier 230, 231, 236, 238, 270, and 271 Series medium-duty hot shift PTOs into a single updated platform. The series offers nine speed ratios and eighteen shift options. Direct-mount configurations include an optional Wet-Spline feature for extended PTO and pump shaft service life. Driveshaft output models are available with the Smart-Start option, which manages high-torque start-up conditions. The integral air control valve comes standard. The 272 Series is used across Aerial, Construction Equipment, Water Truck, Towing and Recovery, Defense, and Material Handling markets.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
