Komatsu Dozer Engine Long Blocks

Komatsu Dozer Engine

Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	4D102	Engine - Long Block (Includes: Oil Pump, Water Pump, Oil Pan, Front Cover, Gasket Set)	KM-4D102-LB-N	From $4,984.00	View Info
	See Details	With 6D102	6D102 NEW Long Block Plus (Includes: Oil Pump, Water Pump, Oil Pan, Front Cover, Gasket Set)	0	KM-6D102-LB-N	Call for Pricing	View Info

New long block engine assemblies for Komatsu dozers, covering both the 4D102 and 6D102 engine families used across a wide range of Komatsu crawler dozers. These complete long block assemblies provide a reliable foundation for engine rebuilds, reducing downtime on the job site.

Fits Models At A Glance

4D102 Engine Series: D37E, D37P, D39E, D39P
6D102 Engine Series: D51E, D51P, D61E, D61P, D65E, D65P

Key Notes

Assembly Type: Long block — includes block, head, and internal components
Condition: New assemblies, not rebuilt or remanufactured
Engine Families: 4D102 and 6D102 inline four- and six-cylinder diesel engines
Application: Designed for crawler dozer engine replacement and rebuild applications

Why Choose Broken Tractor

✅ New long blocks available for immediate purchase
✅ Covers multiple Komatsu engine families and dozer lines
✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH