The Chelsea 272 Series power take-off assembly, part number 272NAHVP-A3XD or 272NAHVPA3XD, is a 6-bolt hot shift PTO designed for medium-duty applications in aerial, construction, towing and recovery, and water truck markets. The 272 Series supports intermittent torque from 201 to 300 lb-ft and delivers 56 or more horsepower output. This unit is configured with pressure lube (P) and pneumatic shift, with a wet spline (W) option integrated into the part number designation. The 272 Series consolidates several earlier Chelsea PTO lines into one platform with nine available speed ratios, eighteen shift configurations, and rotatable mounting flanges. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 272 Series 6-bolt mounting configuration
Hot shift design with pneumatic shift option and integral air control valve
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Output power: 56+ HP (41-50 kW)
Pressure lube (P) configuration per part number designation
Compatible with aerial, construction, towing and recovery, and water truck applications
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Hot Shift)
- Intermittent Torque: 201-300 lb-ft / 401-500 Nm
- Output Power: 56+ HP / 41-50 kW
- Lubrication: Pressure Lube
- Output Shaft Type: Round Shaft (1-1/4" - 5/16" Key) - confirm for this configuration
- Series: Chelsea 272
Additional Information
The Chelsea 272 Series consolidates and replaces the earlier 230, 231, 236, 238, 270, and 271 Series PTOs into a single updated platform. The series features Smart-Start technology for high-torque start-up conditions and a wet-spline option for extended PTO and pump shaft service life. Rotatable flanges allow flexible installation positioning. The 272 Series is used across aerial lift, construction equipment, defense, material handling, water drilling, and towing and recovery applications. Reference documents include the 272 Series Parts List (HY25-2272-M1_US) and the 272/282/852/885 Series Owner's Manual, available through Parker Chelsea.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
