66399 Stone Toro Engine Cummins 130HP Diesel B3.9C

66399 Stone Toro Engine Cummins 130HP Diesel B3.9C

Part number:66399
SKU Number:STN-ST66399
Warranty:1 Year
Fits Models:View Models List

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Stone Toro 66399 Engine Cummins 130HP Diesel B3.9C Repair Part

If your machine isn’t running the way it should, replacing a worn component with 66399 Stone Toro Engine Cummins 130HP Diesel B3.9C can help bring performance back quickly. This type of targeted repair is a smart way to maintain reliability without overhauling the entire unit.


Small parts make a big difference; a proper replacement helps you get full value from the machine you already own. It’s a sensible upgrade in reliability when your equipment needs a refresh. Confirm compatibility with your model before ordering, then install with standard tools and get back to work with confidence.

Fits Models

This part fits 2 models:

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Kevin A.
28 Nov, 2025

Good quality and correct fit for STN-ST66399. The 66399 Stone Toro Engine Cummins 130Hp Diesel B39C installed smoothly and fixed the issue. I just took a little extra time to confirm compatibility.