Komatsu Dozer Final Drive

Komatsu Dozer Final Drive parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
17	See Details	TD7C, TD7E, TD7H, TD8H, 100C, 100E, D38P-1	Bull Gear		0	621109C1	Call for Pricing	View Info

Final drive components for Komatsu and Dresser crawler dozers, including bull gears and related drivetrain parts covering a range of TD-series and D-series machines. These parts are critical to the undercarriage power transmission system and are sourced to match OEM specifications for long service life.

Fits Models At A Glance

Dresser TD-Series: TD7C, TD7E, TD7H, TD8H
Dresser 100-Series: 100C, 100E
Komatsu D-Series: D38P-1

Key Notes

Part Type: Bull gears and final drive components for undercarriage power transmission
Compatibility: Dresser and Komatsu models share common drivetrain components across generations
Application: Final drive bull gears transfer power from the drive sprocket system to the track
Sourcing: Parts available for both older Dresser-badged machines and Komatsu-branded equivalents

Why Choose Broken Tractor

✅ Dresser and Komatsu drivetrain expertise across generations
✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH
✅ Accurate fitment verified against OEM part references

Frequently Asked Questions

What is the final drive on a dozer?

The final drive is the last stage of a dozer's power transmission, where the bull gear transfers power from the drive sprocket system to the track. On a Komatsu crawler dozer it is a critical part of the undercarriage drivetrain, so a worn bull gear affects how power reaches the tracks. Broken Tractor carries final drive bull gears for Komatsu dozers.

What Komatsu dozer final drive parts does Broken Tractor carry?

We carry a final drive bull gear for the Komatsu D38P-1 crawler dozer, SKU 621109C1. It is a drivetrain component that transfers power from the drive sprocket system to the track. The part is sourced to match OEM specifications for long service life.

Does bull gear 621109C1 fit a Komatsu D38P-1 dozer?

Yes, bull gear SKU 621109C1 is listed to fit the Komatsu D38P-1 crawler dozer. Fitment can vary by serial number, so match the part number on your old gear to 621109C1 before ordering. If you are unsure, confirm with the parts team. Call (800) 909-7060.

How do I make sure I am ordering the right Komatsu dozer final drive part?

The most reliable way is to match the part number from your existing gear or parts book to the part number listed. Broken Tractor verifies fitment against OEM part references, and our final drive parts are sourced to match OEM specifications. Checking your machine's model and serial number before ordering helps avoid getting a part that does not fit.