Komatsu Rear Seal 6140-21-1341

The Komatsu Rear Seal 6140-21-1341 is identified in the supplied parts catalog as a CRANKSHAFT & RELATED PARTS for specific Komatsu diesel engine and equipment configurations. Cataloged engine models include 4D95LE-3-65, SAA4D95LE-5, and SAA4D95LE-6/A/B. Listed machine applications include WA65-5 W/CAB, WA70-5, WA80-5 (20Kkm/h), WA80-5 (30Kkm/h), and WA80-5. Use the complete model and serial-number details below to compare this part with the equipment being serviced.

What is 6140-21-1341 used for?

Part number 6140-21-1341 is cataloged as a Rear Seal. It appears in the CRANKSHAFT & RELATED PARTS parts group. The correct selection depends on the engine model, machine model, and the applicable serial-number range.

Compatible engine models

4D95LE-3-65, SAA4D95LE-5, SAA4D95LE-6/A/B

Engine models with serial-number ranges

4D95LE-3-65 (Build 1G-1) ? Not Provided | SAA4D95LE-5 (Build 1M) ? 50001-Up | SAA4D95LE-6/A/B (Build 1N) ? 70001-Up

Application models without serial numbers

WA65-5 W/CAB, WA70-5, WA80-5 (20Kkm/h), WA80-5 (30Kkm/h), WA80-5, PC60-8, PC130-8, PC78US-6, PC130-7

Applications with serial-number ranges

WA65-5 W/CAB S/No. H50051-Up, WA70-5 S/No. H50051-Up, WA80-5 (20Kkm/h) S/No. H50051-Up, WA80-5 (30Kkm/h) S/No. H50051-Up, WA80-5 S/No. H50051-Up

How do I confirm fitment?

Match 6140-21-1341 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 6140-21-1341 fit every listed Komatsu machine?
No. Fitment is limited to the cataloged engine, application, and serial-number combinations. Confirm all identifying information before ordering.