Cummins 43187 Valve, Poppet, Engine

Cummins 43187 is a engine component in Engine Parts, US catalog. Listed by US Government (DLA FLIS), October 2026.

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

The U.S. government's Federal Logistics Information System (FLIS) records Cummins 43187 as the maker's own number under government stock item NSN 2815-00-607-2981. The name and every fact below are FLIS's, credited to US Government (DLA FLIS), October 2026 edition.

Specifications recorded for government stock item NSN 2815-00-607-2981, under which this manufacturer's reference number is listed. Confirm compatibility and specifications with the manufacturer before ordering.

Government item name

Valve, Poppet, Engine

Government stock item (NSN)

2815-00-607-2981

Manufacturer code (CAGE)

15434, CUMMINS INC., COLUMBUS, IN, UNITED STATES

Head height

0.3050 to 0.3200 in

Chamfer angle in deg

45.0

Chamfer length

0.0200 to 0.0400 in

Outside diameter

2.7450 to 2.7550 in

Metallic hardness rating

Tip: Rockwell C 40.0 to 50.0

Seat angle in deg

30.0

Neck radius

1.1150 to 1.1350 in

Stem length

10.4750 to 10.4890 in

Stem diameter

0.7450 in (nominal)

Distance from first groove to stem end

0.4340 to 0.4400 in

Distance from second groove to stem end

0.8090 to 0.8130 in

First groove diameter

0.6210 to 0.6260 in

Second groove diameter

0.6260 in (minimum)

First groove width

0.1875 to 0.1930 in

Second groove width

0.1875 to 0.1930 in

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)

A part of an engine named by its use. Replaced when worn, leaking or damaged. Check the engine model and serial range.

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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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.