Komatsu Engine Piston Ring Assembly Per Cylinder 6261-31-2030

Komatsu Engine Piston Ring Assembly Per Cylinder 6261-31-2030 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6261-31-2030 is listed as Piston Ring Assembly Per Cylinder. Search also by the no-dash alternate number 6261312030.

Engine book references

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

• ENGINES / SAA12V140E-3A S/N 500001-UP / ENGINE / PISTON (A2350-A7B5)
• ENGINES / SAA12V140E-3A S/N 502127-UP (For D475A-5E0/D475ASD-5E0) / ENGINE CYLINDER BLOCK AND ITS RELATED PARTS / PISTON AND CONNECTING ROD / PISTON AND CONNECTING ROD (#502249-) (A2350-001001)
• ENGINES / SAA12V140E-3B S/N 500001-UP / ENGINE / PISTON (A2350-A7B5)
• ENGINES / SAA12V140E-3B S/N 502254-UP (For HD785-7) / ENGINE CYLINDER BLOCK AND ITS RELATED PARTS / PISTON AND CONNECTING ROD / PISTON AND CONNECTING ROD (#502254-) (A2350-001001)
• ENGINES / SAA12V140E-3B S/N 505077-UP (For HD785-7) / ENGINE CYLINDER BLOCK AND ITS RELATED PARTS / PISTON AND CONNECTING ROD / PISTON AND CONNECTING ROD (#505077-) (A2350-001001)
• ENGINES / SAA12V140E-3B-02 S/N 500001-UP / ENGINE / PISTON (A2350-A7B5)

This part appears in 12 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.