The Chelsea 272HDLLP-B8RS or 272HDLLPB8RS is a 6-bolt hot shift power take-off from the Chelsea 272 Series, designed for medium-duty hydraulic and pneumatic equipment applications. It uses a pneumatic PowerShift (pneumatic/hydraulic) engagement and mounts to transmissions from Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM, among others. The output shaft is a 1-1/4" round with a 5/16" key, and continuous torque capacity reaches 300 lb-ft (407 Nm), with intermittent torque rated at 201-300 lb-ft (401-500 Nm). Output power is rated at 56+ HP (41-50 kW). The 272 Series consolidates several earlier Chelsea medium-duty PTO lines into one platform, incorporating an integral air control valve and rotatable flanges. Common applications include towing and recovery, aerial, construction equipment, and water trucks. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting for broad transmission compatibility, including Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, and RAM
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque capacity up to 300 lb-ft (407 Nm); intermittent torque 201-300 lb-ft (401-500 Nm)
Output power 56+ HP (41-50 kW); shaft power 57 HP at 1,000 RPM
Rotatable flanges; used in aerial, construction, towing/recovery, and water truck service
Tech Specs
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Continuous Torque: 300 lb-ft (407 Nm) - Check Application Pages for Actual Torque Ratings
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic, PowerShift (Pneumatic/Hydraulic)
- Output Shaft Type: 1-1/4" Round with 5/16" Key
- 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 the earlier 230, 231, 236, 238, 270, and 271 medium-duty PTO lines into a single platform. The series offers nine speed ratios and eighteen shift options. Direct-mount configurations are available with optional Wet-Spline technology for extended PTO and pump shaft service life. Driveshaft output configurations include the Smart-Start option, designed for high-torque start-up conditions. Typical service markets include aerial equipment, construction equipment, towing and recovery, and water trucks.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
