Komatsu Engine Hose 6221-51-8390

Komatsu Engine Hose 6221-51-8390 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6221-51-8390 is listed as Hose. Search also by the no-dash alternate number 6221518390.

Product code / ETP anchor: 6221-51-8391. This listing is tied back to the sourcing anchor used for catalog control.

Engine book references

This part appears in Komatsu engine parts book paths such as:

• ENGINES / S6D108-1B S/N 11731-UP / (0325)
• ENGINES / S6D108-1B S/N 11731-UP / LUBRICATING OIL SYSTEM / TURBOCHARGER LUBRICATING OIL PIPING (0325)
• ENGINES / SA6D108-1A S/N 10001-UP / LUBRICATING OIL SYSTEM / TURBOCHARGER LUBRICATING OIL PIPING (0325)

Verification note

Always confirm final fitment by engine model, serial range, diagram callout, and part number before ordering. Hub references are provided to help buyers find the right engine section and related parts faster.

Keep Ops Moving

19PARTS organizes Komatsu engine parts around searchable engine-model hubs so rebuild shops, equipment owners, and fleet teams can identify parts and keep repairs moving.