Komatsu Engine Pump Assembly Fuel Injection Fuel 6251-71-1121

Komatsu Engine Pump Assembly Fuel Injection Fuel 6251-71-1121 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6251-71-1121 is listed as Pump Assembly Fuel Injection Fuel. Search also by the no-dash alternate number 6251711121.

Product code / ETP anchor: 6251-71-1120. 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 / SAA6D125E-5-FR S/N 660001-UP (For PC400-8R/PC400LC-8R/PC450-8R/PC450LC-8R) / ENGINE FUEL SYSTEM / FUEL SUPPLY PUMP / FUEL SUPPLY PUMP, INNER PARTS (#660200-) (A4010-003001)
• ENGINES / SAA6D125E-5-FR S/N 660001-UP (For PC400-8R/PC400LC-8R/PC450-8R/PC450LC-8R) / ENGINE FUEL SYSTEM / FUEL SUPPLY PUMP / FUEL SUPPLY PUMP, INNER PARTS, FEED PUMP (#660139-660199) (A4010-002002)
• ENGINES / SAA6D125E-5-FR S/N 660001-UP (For PC400-8R/PC400LC-8R/PC450-8R/PC450LC-8R) / ENGINE FUEL SYSTEM / FUEL SUPPLY PUMP / FUEL SUPPLY PUMP, INNER PARTS, FEED PUMP (#660200-) (A4010-003002)
• ENGINES / SAA6D125E-5-FR S/N 660001-UP (For PC400-8R/PC400LC-8R/PC450-8R/PC450LC-8R) / ENGINE FUEL SYSTEM / FUEL SUPPLY PUMP / FUEL SUPPLY PUMP, INNER PARTS, PUMP (#660140-660199) (A4010-002001A)
• ENGINES / SAA6D125E-5B S/N 567007-UP (For HM300-2) / ENGINE FUEL SYSTEM / FUEL SUPPLY PUMP / FUEL SUPPLY PUMP, INNER PARTS, FEED PUMP (#567007-) (A4010-001002)
• ENGINES / SAA6D125E-5B S/N 567007-UP (For HM300-2) / ENGINE FUEL SYSTEM / FUEL SUPPLY PUMP / FUEL SUPPLY PUMP, INNER PARTS, PUMP (#567234-) (A4010-001001A)

This part appears in 29 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.