Chelsea 447 Series PTO

Chelsa 447 Series PTO

he Chelsea 447 PTO is designed to eliminate interference issues and simplify installation on a variety of transmission types.

At the heart of the Chelsea 447 PTO is a one-piece input gear with a spaced dual-tooth design that prevents interference within the PTO aperture—especially useful for transmissions with adjacent gear clearance challenges.

Building on the success of the Chelsea 442 Series, the 447 offers all the same trusted features plus enhanced compatibility for Eaton FS Series and Nissan/UD MLS Series transmissions. For these applications, the Chelsea 447 PTO can be equipped with a special adapter or installation kit for quick, trouble-free mounting.

To handle demanding torque loads, the 447 utilizes tapered roller bearings rather than needle bearings, providing superior load-bearing capacity and longer service life.

With 26 output options (including Chelsea’s popular 360° rotatable flange), four internal speed ratios, and 11 shift configurations, the Chelsea 447 PTO is one of the most versatile and durable solutions in Parker Chelsea’s lineup—offering smooth operation, easy installation, and dependable performance for a wide range of vocational truck applications.

Technical Specifications

  • Intermittent Torque: 201 to 300 lb-ft, 301 to 400 Nm, 225 lb-ft (Check Application Pages for Actual Torque Ratings), 305 Nm (Check Application Pages for Actual Torque Ratings)
  • Shift Type: Wire/Cable, Mechanical
  • Output Power: 36 to 45 HP, 31 to 40 kW
  • Mounting Type: 6-Bolt
  • Output Shaft Type: Round Shaft (1″ – 1/4″ Key)
  • Shaft Power: 21 HP (500 RPM), 43 HP (1000 RPM), 16 kW (500 RPM), 32 kW (1000 RPM)
  • Continuous Torque: De-Rate Torque Rating 30% (Check Application Pages for Actual Torque Ratings)
  • Weight: 21 lb, 9.5 kg
  • Lubricant: P = Pressure Lube, X = No Pressure Lube

Key Benefits

  • Wide range of shift and output options

  • No adapter plate required

  • Eliminates interference problems inside transmission/PTO opening

  • Two-Year Warranty

Examples of Suitable Applications

  • Utility Trucks

  • Snow & Ice Removal

  • Fire and Rescue

  • Dump Truck and Trailer

  • Service Trucks

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