The Chelsea 272 Series Power Take-Off Assembly, part number 272ZSJWX-A5BD or 272ZSJWXA5BD, is a 6-bolt hot shift PTO designed for medium-duty applications including aerial, construction equipment, towing and recovery, and water trucks. The 272 Series supports intermittent torque ratings from 201 to 300 lb-ft and continuous output exceeding 56 HP. Available with pneumatic or hydraulic shift, the 272 Series consolidates several earlier Chelsea PTO lines into one platform, offering nine speed ratios and 18 shift options. The series also supports an optional Wet-Spline output for extended PTO and pump shaft life. Call us to confirm proper fit for your application.
Features
Chelsea 272 Series 6-bolt hot shift PTO Assembly
Intermittent torque rating: 201 to 300 lb-ft (401 to 500 Nm)
Continuous output: 56+ HP (41 to 50 kW)
Pneumatic or hydraulic shift with integral air control valve
Nine speed ratios and 18 shift options available in the series
Optional Wet-Spline output for extended PTO and pump shaft service life
Smart-Start option available for high-torque start-up conditions
Tech Specs
- Mounting Type: 6-Bolt
- Shift Type: Pneumatic or Hydraulic
- Intermittent Torque: 201 to 300 lb-ft (401 to 500 Nm)
- Output Power: 56+ HP (41 to 50 kW)
- Output Shaft Type: Round Shaft (1 in. with 1/4 in. key) or Round Shaft (1-1/4 in. with 5/16 in. key)
- Speed Ratios Available in Series: 9
- Shift Options Available in Series: 18
- NMFC Code: 128520 - Hydraulic PTOs, Pumps, Motors, etc.
Additional Information
The Chelsea 272 Series consolidates the earlier 230, 231, 236, 238, 270, and 271 Series PTOs into a single medium-duty hot shift platform. The 272 is used across aerial, construction equipment, towing and recovery, water truck, defense, and material handling markets. Rotatable flanges provide mounting flexibility. The Smart-Start option is engineered for applications with high-torque start-up demands, and the optional Wet-Spline technology extends both PTO and pump shaft service life under continuous-duty conditions. Part number 272ZSJWX-A5BD is sold individually (each). Pro Gear and Transmission carries genuine Chelsea parts for heavy-duty truck drivetrain applications.Parts Manual: Chelsea 272 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
