Komatsu Excavator Swing Drive

Swing drive assemblies and swing reduction units for Komatsu excavators, covering Italian-made Dyco assemblies and OEM-spec reduction units across PC150 through PC190 series machines.

Fits Models At A Glance

• PC150 Series: PC150-6K, PC150LC-6K
• PC160/PC180 Series: PC160LC-7, PC160LC-8, PC180LC-7
• PC190 Series: PC190LC-8

Key Notes

• Assembly Types: Complete swing drive assemblies and swing reduction units available
• Manufacture: Dyco Italian-made assemblies offered alongside OEM-spec replacement units
• Application: Upper structure rotation on medium-class Komatsu crawler excavators
• Generation Coverage: Spans -6K, -7, and -8 series machine generations

Why Choose Broken Tractor

• ✅ Excavator specialists serving contractors and equipment dealers
• ✅ Italian-made Dyco assemblies available for demanding applications
• ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH

Frequently Asked Questions

What swing drive fits a Komatsu PC160LC-7 excavator?

The Swing Drive Assembly for Komatsu Excavators, SKU 21K-26-71100, is listed to fit the PC160LC-7. The same assembly is also listed for the PC160LC-8, PC180LC-7 and PC190LC-8. Compare the part number on your existing swing drive to 21K-26-71100 before ordering.

Does the Komatsu PC190LC-8 use the same swing drive as the PC160LC-8?

Yes, both machines are listed for the same swing drive assembly, SKU 21K-26-71100. That assembly also covers the PC180LC-7 and PC160LC-7, so it spans both the -7 and -8 generations of these medium-class Komatsu excavators. Fitment can still vary by serial number, so match your part number before you buy.

What swing reduction fits a Komatsu PC150LC-6K?

Broken Tractor offers the Komatsu Excavator PC150-6K, PC150LC-6K Swing Reduction, SKU 21P-26-K1113, for the PC150LC-6K. It is also listed for the standard PC150-6K. Check that 21P-26-K1113 matches the number on your current unit to confirm the fit.

Are Broken Tractor's Komatsu excavator swing drives OEM or aftermarket?

Broken Tractor is an aftermarket parts store, and we carry Italian-made Dyco swing drive assemblies along with OEM-spec replacement units. Both types are built for upper structure rotation on medium-class Komatsu crawler excavators in the PC150 through PC190 series.

How do I make sure I order the right swing drive for my Komatsu excavator?

Start with your machine model and the part number stamped on your existing swing drive or swing reduction, then match it to the SKU listed. Some fitment depends on serial number, so if your model or part number is unclear, call the parts team at (800) 909-7060 with your serial number before ordering.