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Flywheel housing sizes of diesel engines in SAE terms

All manufacturers use standard flywheel housing sizes for reference. It is a useful way to identify and communicate the size of your engine's flywheel and flywheel housing.

Diesel engine manuals and specifications

at Barrington Diesel Club

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Your Detroit Diesel Specs

Basic specs are open to everyone and include images, displacement, dimensions and weight, essential bolt tightening torques, the characteristics of the engine like its power and torque.
Essential bolt tightening torques are the main bearing cap bolt torque, the connecting rod cap bolt torque and the cylinder head bolt torques.

Some Popular Engine Specs

Flywheel housing sizes expressed in SAE terms

Flywheel Housing SAE sizes Flywheel Housing ID
  SAE Size ID - inch     ID - mm (rounded)      
  0 25.500 648
  0.5 23.000 584
  1 20.125 511
  1.5 15.375 467
  2 17.625 447
  3 16.125 410
  4 14.250 362

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Page Revision #10.1R 01-17