Komatsu Engine Nozzle Assembly Piston Cooling 6211-21-1800

Komatsu Engine Nozzle Assembly Piston Cooling 6211-21-1800 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6211-21-1800 is listed as Nozzle Assembly Piston Cooling. Search also by the no-dash alternate number 6211211800.

Engine book references

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

• ENGINES / S6D140-1A S/N 10001-UP / CYLINDER BLOCK / CYLINDER BLOCK(#10001-17138) (0201)
• ENGINES / S6D140-1A S/N 10001-UP / CYLINDER BLOCK / CYLINDER BLOCK(#17139-) (0201A)
• ENGINES / S6D140-1A-F S/N 10001-UP / ENGINE / CYLINDER BLOCK (2/2)(#25900-) (A2010-B4H8)
• ENGINES / S6D140-1A-F S/N 10001-UP / ENGINE / CYLINDER BLOCK (EXTREME COLD TERRAIN SPEC.)(#19040-25899) (A2010-A4D8)
• ENGINES / S6D140-1A-F S/N 10001-UP / ENGINE / CYLINDER BLOCK(#19029-25899) (A2010-A4C3)
• ENGINES / S6D140-1B-80 S/N 10278-UP / CYLINDER BLOCK / CYLINDER BLOCK(#10278-17626) (0201)

This part appears in 100 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.