Komatsu Engine Coupling 6127-71-3131

Komatsu Engine Coupling 6127-71-3131 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6127-71-3131 is listed as Coupling. Search also by the no-dash alternate number 6127713131.

Engine book references

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

• ENGINES / S4D155-4 S/N 10287-50040 / FUEL SYSTEM / FUEL INJECTION PUMP DRIVE(#10287-) (405)
• ENGINES / S6D155-4-R S/N 10014-UP / FUEL SYSTEM / FUEL INJECTION PUMP DRIVE SERVICE METER(#30551-) (403)
• ENGINES / S6D155-4A S/N 10014-UP / FUEL SYSTEM / FUEL INJECTION PUMP DRIVE (1405)
• ENGINES / S6D155-4AA S/N 25887-UP / FUEL SYSTEM / FUEL INJECTION PUMP DRIVE AND SERVICE METER (0403)
• ENGINES / S6D155-4B S/N 10016-UP / (1405)
• ENGINES / S6D155-4B S/N 10016-UP / FUEL SYSTEM / FUEL INJECTION PUMP DRIVE (1405)

This part appears in 25 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.