Komatsu Cylinder Head (Bare) 6731-11-1120

The Komatsu Cylinder Head (Bare) 6731-11-1120 is identified in the supplied parts catalog as a CYLINDER HEAD & COMPONENTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include SA6D102E-1AA and SA6D102E-1AC. Listed machine applications include PC220LC-6, PC240-6K, PC240LC-6K, PC240NLC-6K, and PC250LC-6. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6731-11-1120 used for?

Part number 6731-11-1120 is cataloged as a Cylinder Head (Bare). It appears in the CYLINDER HEAD & COMPONENTS parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

SA6D102E-1AA, SA6D102E-1AC

Engine models with serial-number ranges

SA6D102E-1AA (Build 4C) ? 21180000-21296536 | SA6D102E-1AC (Build 4D) ? 21288263-Up

Application models without serial numbers

PC220LC-6, PC240-6K, PC240LC-6K, PC240NLC-6K, PC250LC-6, GD555-3C, PC270LC-6, PC290LC-6K, PC290NLC-6K

Applications with serial-number ranges

PC220LC-6 S/No. A82001-Up, PC240-6K S/No. K30001-Up, PC240LC-6K S/No. K30001-Up, PC240NLC-6K S/No. K30001-Up, PC250LC-6 S/No. A82001-Up, GD555-3C S/No. 50001-Up, PC270LC-6 S/No. A83001-Up, PC290LC-6K S/No. K30001-Up, PC290NLC-6K S/No. K30001-Up

How do I confirm fitment?

Match 6731-11-1120 to the existing part number and verify the complete engine model, equipment model, and serial number. A shared model name does not confirm compatibility because production changes can affect the required component.

Frequently asked question

Will 6731-11-1120 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.