Komatsu Engine Seal Rear 6219-21-4240

Komatsu Engine Seal Rear 6219-21-4240 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6219-21-4240 is listed as Seal Rear. Search also by the no-dash alternate number 6219214240.

Engine book references

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

• ENGINES / SAA12V140E-3C-02 S/N 500001-UP / ENGINE / CYLINDER BLOCK GASKET KIT (FOR PC2000-8)(#500036-) (A8120-A7A2)
• ENGINES / SAA12V140E-3C-02 S/N 500001-UP / ENGINE / FLYWHEEL HOUSING(#500036-) (A2210-A7D1)

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.