Komatsu Engine Muffler 6251-11-5440

Komatsu Engine Muffler 6251-11-5440 is a Komatsu engine replacement part listed by 19PARTS for engine-section lookup, hub navigation, and part-number verification.

Product overview

Part number 6251-11-5440 is listed as Muffler. Search also by the no-dash alternate number 6251115440.

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 CYLINDER HEAD AND ITS RELATED PARTS / EXHAUST MUFFLER AND MOUNTING BRACKET / EXHAUST MUFFLER AND MOUNTING BRACKET (#660001-) (A1610-001001)
• ENGINES / SAA6D125E-5F S/N 560001-UP / ENGINE / MUFFLER(#562438-) (A1610-A3Y3)
• ENGINES / SAA6D125E-5F S/N 562304-UP (For PC400-8/PC400LC-8/PC450-8/PC450LC-8/PC550LC-8) / ENGINE CYLINDER HEAD AND ITS RELATED PARTS / EXHAUST MUFFLER AND MOUNTING BRACKET / EXHAUST MUFFLER AND MOUNTING BRACKET (#560004-) (A1610-002001)
• ENGINES / SAA6D125E-5F S/N 562304-UP (For PC400-8/PC400LC-8/PC450-8/PC450LC-8/PC550LC-8) / ENGINE FUEL SYSTEM / FUEL FILTER PIPING / MUFFLER(#562438-) (A1610-A3Y3)
• ENGINES / SAA6D125E-5F S/N 674420-up / A0 [ENGINE CYLINDER HEAD AND ITS RELATED PARTS] / EXHAUST MUFFLER AND MOUNT BRACKET (|A00011)
• ENGINES / SAA6D125E-5F-02 S/N 560001-UP / ENGINE / MUFFLER(#562438-) (A1610-A3Y3)

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.