The Chelsea 272HMLLP-B8RF or 272HMLLPB8RF is a 272 Series 6-bolt hot shift power take-off assembly from Parker Chelsea. The 272 Series consolidates several earlier medium-duty PTO lines into a single platform, supporting up to 300 lb-ft of intermittent torque and continuous-duty operation when de-rated per application guidelines. The series offers hydraulic and pneumatic shift options, an integral air control valve, and rotatable flanges for flexible installation. Direct-mount outputs are available with an optional Wet-Spline configuration for extended PTO and pump shaft service life, while driveshaft output configurations support the Smart-Start feature for high-torque start-up conditions. Common applications include aerial equipment, construction equipment, towing and recovery, and water trucks. Call us to confirm proper fit for your specific transmission and installation.
Features
Chelsea 272 Series 6-bolt hot shift PTO assembly
Up to 300 lb-ft intermittent torque capacity
Compatible with hydraulic or pneumatic shift operation
Integral air control valve included
Rotatable flanges for flexible mounting configurations
Optional Wet-Spline and Smart-Start features available within the 272 Series
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Hydraulic or Pneumatic (Air)
- Intermittent Torque (Series): 201 to 300 lb-ft (401 to 500 Nm)
- Output Power (Series): 56+ HP (41 to 50 kW)
- Output Shaft Options (Series): Round Shaft 1 in. with 1/4 in. key, or Round Shaft 1-1/4 in. with 5/16 in. key
- Lubricant Options (Series): X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
- Speed Ratios Available (Series): 9
- Shift Options Available (Series): 18
Additional Information
The Chelsea 272 Series was developed to replace and consolidate multiple earlier medium-duty hot shift PTO lines, including the 230, 231, 236, 238, 270, and 271 Series, making it a broad-coverage option for medium-duty applications. The series is used across aerial, construction equipment, water truck, towing and recovery, defense, and material handling markets. Parker Chelsea publishes a dedicated parts list (272 Series Parts List HY25-2272-M1_US) and an owner's manual covering the 272/282/852/885 Series, available through Parker's documentation library. Pro Gear and Transmission carries this genuine Chelsea part. Call us to confirm fitment with your specific transmission or installation configuration.Parts manual and diagrams: Chelsea 272 Series PTO parts list with prices
