The Chelsea 272 Series Power Take-Off Assembly, part number 272NBHVP-B3XD or 272NBHVPB3XD, is a 6-bolt hot shift PTO designed for medium-duty commercial truck applications including towing and recovery, aerial work, construction equipment, and water trucks. It features a 1-1/4" round output shaft with a 5/16" key 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). Compatible transmissions span multiple manufacturers, including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM platforms. Call us to confirm proper fit for your specific transmission and application.
Features
6-bolt mounting with hot shift engagement
Pneumatic or PowerShift (pneumatic/hydraulic) shift options
1-1/4" round output shaft with 5/16" key
Continuous torque rated at 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power exceeds 56 HP (41-50 kW); shaft power at 1,000 RPM: 57 HP (43 kW)
Compatible with Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM transmissions
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 at 500 RPM: 29 HP (21 kW); at 1,000 RPM: 57 HP (43 kW)
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, Other
Additional Information
Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
