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267 Series Constant Mesh Power Take-Off

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267 Series

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Chelsea 267 Series is a 10-Bolt PTO designed to fit Allison and CAT automatic transmissions. It is a non-shiftable PTO that is ideal for mobile applications requiring continuous power for load-sensing pumps like used on yard jockey trucks.

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Quality knows quality, which is why Allison chose Chelsea to join their engineers in developing PTOs specifically for the Allison World Transmissions. The versatile 267 Series is a constant mesh PTO that exceeds the torque capacity of a 6-Bolt PTO while offering the tighter sealing of a 10-Bolt pattern. The Chelsea 267 Series Power Take-Off (PTO) is an excellent choice for variable displacement piston pumps used in refuse and snow and ice removal applications. It is available in five speed ratios and multiple output types, including Chelsea's popular 360° rotatable flange. The 267 Series also features the SuperTorque™ option which provides up to 20% more torque capacity than a standard 267 Series.  


  • Aerial
  • Military
  • Refuse
  • Snow and Ice Trucks

Features and Benefits:

  • Rotatable Flanges to improve clearance
  • Super Torque™ Gears available for extra power
  • Wet Spline or Greaseable Shafts to extend PTO & Pump shaft life
  • Two Year Warranty


  • Snow Plow Trucks
  • Small Refuse Trucks
  • Yard Jockey Trucks

Intermittent Torque:

  • 301-400 lb-ft
  • 401-500 Nm
  • 335 (Check Application Pages for Actual Torque Ratings) lb-ft
  • 454 (Check Application Pages for Actual Torque Ratings) Nm

Mounting Type:

  • 10-Bolt

Output Shaft Type:

  • 1-1/4" Round
  • 1-1/4" RD w/Key

Output Power:

  • 56+ HP
  • 41-50 kW

Transmission Manufacturer:

  • Allison
  • Other

Shift Type:

  • Constant Mesh (Non-Shiftable)

Shaft Power:

  • 500 RPM: 32, 1000: RPM 64 HP
  • 500 RPM: 24, 1000: RPM 48 kW


  • 35 lb
  • 16 kg