The Chelsea 272 Series Power Take-Off Assembly, part number 272XAAJP-G3XR or 272XAAJPG3XR, is a 6-bolt hot-shift PTO designed for medium-duty applications including towing and recovery, aerial, construction, and water truck equipment. It uses a 1-1/4" round output shaft with a 5/16" key and ships with an integral air control valve. Shift is pneumatic or PowerShift (pneumatic/hydraulic). The 272 Series carries a continuous torque rating up to 300 lb-ft (407 Nm) and an intermittent torque rating in the 201-300 lb-ft (401-500 Nm) range, with shaft power of 29 HP at 500 RPM and 57 HP at 1,000 RPM. The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into one platform, offering rotatable flanges and a Smart Start option for high-torque startup conditions. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting for broad transmission compatibility including Ford, Allison, Eaton/Fuller, Aisin, Volvo/Mack, and RAM
Pneumatic or PowerShift (pneumatic/hydraulic) hot-shift operation 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)
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM; output power rated at 56+ HP
Rotatable flanges and Smart Start option available for high-torque startup conditions
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: Up to 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
- Compatible Transmissions: Ford, Allison, Eaton/Fuller, Aisin, Volvo/Mack, RAM, and other manufacturers
