The Chelsea 272GKAJX-B3SD is a 6-bolt hot shift power take-off from Chelsea's 272 Series, a medium-duty PTO line that consolidates the earlier 230, 231, 236, 238, 270, and 271 series into a single platform. This unit shifts pneumatically or via hydraulic PowerShift and delivers a continuous torque rating up to 300 lb-ft (407 Nm), with intermittent torque in the 201-300 lb-ft (401-500 Nm) range. The output shaft is a 1-1/4" round with a 5/16" key. Compatible transmissions include Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM applications. Typical markets include towing and recovery, aerial, construction equipment, and water trucks. Call us to confirm proper fit for your application.
Features
6-bolt mounting for broad transmission compatibility across Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
Pneumatic (air) shift and hydraulic PowerShift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power rated at 56+ HP (41-50 kW); shaft power of 57 HP at 1,000 RPM
Part of the Chelsea 272 Series, which consolidates six earlier PTO series into one versatile medium-duty platform
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic (Air Shift) / PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- Continuous Torque: 300 lb-ft / 407 Nm (Check Application Pages for Actual Torque Ratings)
- Intermittent Torque: 201-300 lb-ft / 401-500 Nm
- Output Power: 56+ HP / 41-50 kW
- Shaft Power: 29 HP (21 kW) at 500 RPM; 57 HP (43 kW) at 1,000 RPM
- Compatible Transmissions: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other applications
Additional Information
The Chelsea 272 Series consolidates six previous Chelsea medium-duty PTO lines (230, 231, 236, 238, 270, and 271 series) into a single platform with nine speed ratios and 18 shift options. The series includes an integral air control valve as standard, rotatable flanges, and an optional Wet-Spline feature for extended PTO and pump shaft service life. A Smart Start option is available for high-torque start-up conditions. Common applications include aerial equipment, towing and recovery, construction equipment, and water trucks. Part number 272GKAJX-B3SD or 272GKAJXB3SD.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
