The Chelsea 272ZMAJX-A3BD is a 6-bolt hot shift Power Take-Off from the Chelsea 272 Series, designed for medium-duty applications across aerial, construction, towing and recovery, and water truck markets. The 272 Series supports intermittent torque ratings of 201-300 lb-ft (401-500 Nm) and output power of 56+ HP. Shift options include pneumatic or hydraulic, with an integral air control valve included. Output shaft choices across the series cover round shaft configurations with keyed outputs. Rotatable flanges and a wet-spline option help extend PTO and pump shaft service life. Smart-Start is available for high-torque start-up conditions. A genuine Chelsea part, sold by Pro Gear and Transmission.
Features
6-Bolt mounting configuration
Hot shift operation with pneumatic or hydraulic shift options
Intermittent torque rating: 201-300 lb-ft (401-500 Nm)
Output power: 56+ HP (41-50 kW range for continuous)
Integral air control valve included
Wet-Spline and Smart-Start options available within the 272 Series
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP
- Output Shaft Type: Round Shaft (1 in. with 1/4 in. key) or Round Shaft (1-1/4 in. with 5/16 in. key)
- Lubricant Options: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 series into a single platform. The 272 offers 9 speed ratios and 18 shift options, making it one of the most application-flexible medium-duty hot shift PTOs in the Chelsea lineup. Markets served include aerial equipment, construction, towing and recovery, water trucks, defense, and material handling.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
