Komatsu Engine Gasket 6128-21-3231

Komatsu Engine Gasket 6128-21-3231 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6128-21-3231 is listed as Gasket. Search also by the no-dash alternate number 6128213231.

Engine book references

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

• ENGINES / S6D155-4-R S/N 10014-UP / CYLINDER BLOCK / GEAR CASE AND FRONT SUPPORT(#30551-) (203)
• ENGINES / S6D155-4-R S/N 10014-UP / ENGINE KIT / GASKET KIT(#56577-) (991)
• ENGINES / S6D155-4AA S/N 25887-UP / CYLINDER BLOCK / GEAR CASE AND FRONT SUPPORT (0205)
• ENGINES / S6D155-4AA S/N 25887-UP / TOOL AND KIT / CYLINDER BLOCK GASKET KIT (0992)
• ENGINES / SA6D155-4A S/N 50816-UP / CYLINDER BLOCK / GEAR CASE AND COVER (0205)
• ENGINES / SA6D155-4A S/N 50816-UP / TOOL AND KIT / GASKET KIT (0991)

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.