Komatsu Engine O-Ring Cylinder Block Cover 6210-21-6452

Komatsu Engine O-Ring Cylinder Block Cover 6210-21-6452 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6210-21-6452 is listed as O-Ring Cylinder Block Cover. Search also by the no-dash alternate number 6210216452.

Engine book references

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

• ENGINES / S6D140-1A S/N 10001-UP / CYLINDER BLOCK / CYLINDER BLOCK COVER(#10001-17138) (0203)
• ENGINES / S6D140-1A S/N 10001-UP / CYLINDER BLOCK / CYLINDER BLOCK COVER(#17139-) (0203A)
• ENGINES / S6D140-1A S/N 10001-UP / TOOL AND KIT / GASKET KIT (WITH POWER TAKE OFF) (0991)
• ENGINES / S6D140-1A S/N 10001-UP / TOOL AND KIT / GASKET KIT (WITHOUT POWER TAKE OFF) (0994)
• ENGINES / S6D140-1A-F S/N 10001-UP / ENGINE / CAMFOLLOWER COVER (EXTREME COLD TERRAIN SPEC.)(#19040-) (A2060-A4A7)
• ENGINES / S6D140-1A-F S/N 10001-UP / ENGINE / CAMFOLLOWER COVER(#19029-20344) (A2060-A4A9)

This part appears in 157 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.