Cummins 3971520 Gear

Cummins 3971520 is a gear in Engine Parts, US catalog. Listed by Engine parts list (publisher, brand and date not printed).

GEAR,ACCESSORY DRIVE

Specifications

Part type taken from

the printed name (SearchForPart's reviewed name list)

Government data (US Government (DLA FLIS), October 2026 edition)

The U.S. government's Federal Logistics Information System (FLIS) records Cummins 3971520 as the maker's own number under government stock item NSN 2815-01-585-8878. Shown beside the catalog facts above, not in their place.

Government item name

Gear, Accessory Driv

Government stock item (NSN)

2815-01-585-8878

Source: US Government (DLA FLIS), October 2026 edition, a public U.S. government data release. This is not an official DLA record and may contain errors. Verify fitment before ordering. Not affiliated with or endorsed by the Defense Logistics Agency or the Department of Defense. SearchForPart does not show a price here.

About this kind of part (general, written by SearchForPart)

Parts of an engine or driveline assembly named by their shape. Replaced when worn, cracked or broken. Check the assembly they belong to and the position.

When ordering, give the part number exactly as printed and its maker, and the make, model and year of the truck, trailer, reefer unit or machine (or the engine or unit serial number). SearchForPart shows fitment only as the source printed it: check it before you order.

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Catalog information provided by Engine parts list (publisher, brand and date not printed). Fitment for your equipment is not verified by this page. SearchForPart does not show a price here.