Komatsu Engine Piston DK487009-0400

Komatsu Engine Piston DK487009-0400 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number DK487009-0400 is listed as Piston. Search also by the no-dash alternate number DK4870090400.

Engine book references

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

• ENGINES / S6D105-1AH S/N 94066-UP / ACCESSORY / AIR COMPRESSOR (0711)
• ENGINES / S6D105-1AJ S/N 86535-UP / ACCESSORY / AIR COMPRESSOR (0711)
• ENGINES / S6D105-1F S/N 18302-UP / (621)
• ENGINES / S6D105-1F S/N 18302-UP / ACCESSORY / AIR COMPRESSOR (621)
• ENGINES / S6D105-1G S/N 12124-UP / ACCESSORY / AIR COMPRESSOR(#12124-49999) (621)
• ENGINES / S6D105-1J S/N 19730-UP / (621)

This part appears in 26 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.