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Our offices are closed for Thanksgiving. Orders placed online will be processed on Monday 12/1/2025.

Our offices are closed for Thanksgiving. Orders placed online will be processed on Monday 12/1/2025.

Cummins 3930820 Alternator Support

Compatible With 4B3.10, 6B5.10, ISB3.9, ISB4.5, QSB3.9, and QSB4.5 Engines

Genuine Cummins Part

Base price: $144.38
$132.83
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Item Guaranteed in Stock Not Returnable

PRODUCT NOTES

This is a genuine Cummins part shipped with a 12-month warranty.

Call us at 888.687.0539 if you have any questions about this item.
As always, your satisfaction is guaranteed!


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