Komatsu Engine O-Ring Water Manifold 6166-11-6290

Komatsu Engine O-Ring Water Manifold 6166-11-6290 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6166-11-6290 is listed as O-Ring Water Manifold. Search also by the no-dash alternate number 6166116290.

Engine book references

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

• ENGINES / S6D140-1A S/N 10001-UP / LUBRICATING OIL SYSTEM / LUBRICATING OIL COOLER (0331)
• ENGINES / S6D140-1A S/N 10001-UP / LUBRICATING OIL SYSTEM / LUBRICATING OIL COOLER (COLD TERRAIN SPEC.) (EXCEPT JAPAN) (0334)
• ENGINES / S6D140-1A-F S/N 10001-UP / ENGINE / WATER PUMP(#19029-19730) (A5010-A4A8)
• ENGINES / S6D140-1A-F S/N 10001-UP / ENGINE / WATER PUMP(#19731-25578) (A5010-A4A8A)
• ENGINES / S6D140-1B-80 S/N 10278-UP / LUBRICATING OIL SYSTEM / LUBRICATING OIL COOLER (0331)
• ENGINES / S6D140-1B-80 S/N 10278-UP / TOOL AND KIT / GASKET KIT (0991)

This part appears in 201 Komatsu engine book paths in our reference data.

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.