The Chelsea 272ADKUP-B5RZ or 272ADKUPB5RZ is a 272 Series hot shift power take-off assembly built on a 6-bolt mount. Part of Parker Chelsea's medium-duty hot shift lineup, the 272 Series supports up to 300 lb-ft of intermittent torque and is available with either pneumatic or hydraulic shift. The series consolidates six earlier Chelsea PTO models into a single platform, offering nine speed ratios and eighteen shift configurations. Output shaft options within the 272 Series include round shaft formats with keyway configurations. Applications for this series cover aerial, construction equipment, water trucks, and towing and recovery. Call us to confirm proper fit for your specific transmission and pump pairing.
Features
Chelsea 272 Series 6-bolt mounting configuration
Hot shift design with pneumatic or hydraulic shift options
Intermittent torque rating up to 300 lb-ft (401-500 Nm)
Integral air control valve included
Consolidates 230, 231, 236, 238, 270, and 271 Series into one platform
Suited for aerial, construction, water truck, and towing and recovery applications
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201-300 lb-ft (401-500 Nm)
- Output Power: 56+ HP (41-50 kW)
- Speed Ratios Available (Series): 9
- Shift Configurations Available (Series): 18
- Output Shaft Type: Round Shaft (1 in. with 1/4 in. key) or Round Shaft (1-1/4 in. with 5/16 in. key)
Additional Information
The Chelsea 272 Series replaces and consolidates six previous Chelsea medium-duty hot shift PTO models: the 230, 231, 236, 238, 270, and 271 Series. Direct-mount output options include an optional Wet-Spline configuration for extended PTO and pump shaft service life. Driveshaft output configurations within the series include the Smart-Start feature, designed for high-torque start-up conditions. The series is also referenced under part number SP272ADKUP-B5RZ in some distributor systems. Applicable markets include aerial equipment, construction equipment, water trucks, towing and recovery, material handling, defense, and water drilling.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
