The Chelsea 272XCAJX-P3BD is a 272 Series medium-duty hot shift power take-off assembly with a 6-bolt mounting configuration. It features a 1-1/4" round output shaft with a 5/16" keyway and supports pneumatic or PowerShift (pneumatic/hydraulic) engagement. Continuous torque capability reaches 300 lb-ft (407 Nm), with intermittent torque rated at 201-300 lb-ft (401-500 Nm). Output power exceeds 56 HP (41-50 kW), with shaft power measuring 29 HP at 500 RPM and 57 HP at 1,000 RPM. The 272 Series is compatible with transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers. Call us to confirm proper fit for your application.
Features
6-bolt mounting for broad transmission compatibility, including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
1-1/4" round output shaft with 5/16" keyway
Pneumatic or PowerShift (pneumatic/hydraulic) shift options with integral air control valve
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM
Suited for aerial, towing and recovery, construction equipment, and water truck applications
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - Check application pages for actual torque ratings
- Output Power: 56+ HP (41-50 kW)
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Transmission Compatibility: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other manufacturers
Additional Information
The Chelsea 272 Series consolidates several earlier medium-duty hot shift PTO families, including the 230, 231, 236, 238, 270, and 271 Series, into a single versatile platform. The 272 Series offers nine speed ratios and eighteen shift options. Rotatable flanges and an integral air control valve are standard. The Wet-Spline option (where applicable) extends PTO and pump shaft service life, and the Smart Start option supports high-torque start-up conditions.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
