The Chelsea 272HKLLP-B8XD or 272HKLLPB8XD is a 6-bolt hot shift power take-off from Chelsea's 272 Series, designed for medium-duty applications including aerial work, towing and recovery, construction equipment, and water trucks. This unit shifts pneumatically (PowerShift pneumatic/hydraulic) and features a 1-1/4" round output shaft with a 5/16" key. Continuous torque rating reaches 300 lb-ft (407 Nm); intermittent torque falls in the 201-300 lb-ft (401-500 Nm) range. Shaft power output is rated at 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, and RAM. 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
Pneumatic and PowerShift (pneumatic/hydraulic) shift options with integral air control valve
1-1/4" round output shaft with 5/16" key
Continuous torque rating of 300 lb-ft (407 Nm); intermittent torque in the 201-300 lb-ft range
Shaft power: 29 HP at 500 RPM, 57 HP at 1,000 RPM; output power rated at 56+ HP
Consolidates earlier Chelsea 230, 231, 236, 238, 270, and 271 series into a single versatile platform
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
- 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
- Shift Type: Pneumatic / PowerShift (Pneumatic/Hydraulic)
- Compatible Transmission Manufacturers: Allison, Eaton/Fuller, Ford, Aisin, Volvo/Mack, RAM, and other
- Dimensions (H x W x L): 15.75" x 12.5" x 14"
Additional Information
The Chelsea 272 Series consolidates several previous medium-duty hot shift PTO families - including the 230, 231, 236, 238, 270, and 271 series - into a single platform. The series offers nine speed ratios and eighteen shift options, making it one of the more flexible 6-bolt PTOs available for medium-duty trucks. The 272HKLLP-B8XD is suited for aerial, construction, towing and recovery, and water truck applications. The integral air control valve is included. Also referenced as SP272HKLLP-B8XD in some parts catalogs.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
