PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2W8406Engine,diesel

Caterpillar Inc Div Caterpillar Defense · NSN 2815-01-543-0123 · FSC 2815 · No Item Name Available
Verified by PartsTable
NSN 2815-01-543-0123 — this item is cataloged by the U.S. Government under National Stock Number 2815-01-543-0123. Primary manufacturer part number: 2W8406.
Features
  • Engine,diesel — FSC 2815
  • 2 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Mechanical power generation
  • Drive system operation
  • Auxiliary equipment operation
General Description

The Engine,diesel, cataloged under National Stock Number 2815-01-543-0123, is classified within Federal Supply Class 2815 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameEngine,diesel
FSC / FSG2815 — No Item Name Available (FSG 28)
ManufacturersCaterpillar Inc Div Caterpillar Defense (CAGE 11083)
Technical Specifications
ParameterValue
NSN2815-01-543-0123
Primary Part Number2W8406
Item NameEngine,diesel
FSC / FSG2815 / 28 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5365-00-755-65713508 INTERCHANGEABLE
Spacer,ring
Husco International Inc
6930-01-057-1958350-8 INTERCHANGEABLE
Converter,special
Eaton Aerospace, Llc Dba Jackson South
2530-01-178-6652C3508 INTERCHANGEABLE
Rotor,disc Brake
Century Parts, Inc,
4520-01-210-9553444W INTERCHANGEABLE
Frame and Box with
Hart & Cooley, Inc.
5950-01-291-0798410411 INTERCHANGEABLE
Reactor
Aimtron Systems, Llc
6780-01-383-0842 INTERCHANGEABLE
Print Washing Kit,photographic
8465-01-687-36013508 INTERCHANGEABLE
Sunglasses
Wiley X, Inc. Dba Wiley X Inc
Cross-Reference Index
Part NumberManufacturer
2W8406 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
3508 Caterpillar Inc Div Caterpillar Defense (USA)
Related Parts
5365-00-755-6571INTERCHANGEABLE
SPACER,RING
3508
6930-01-057-1958INTERCHANGEABLE
CONVERTER,SPECIAL
350-8
2530-01-178-6652INTERCHANGEABLE
ROTOR,DISC BRAKE
C3508
4520-01-210-9553INTERCHANGEABLE
FRAME AND BOX WITH
444W
5950-01-291-0798INTERCHANGEABLE
REACTOR
410411
6780-01-383-0842INTERCHANGEABLE
PRINT WASHING KIT,PHOTOGRAPHIC
8465-01-687-3601INTERCHANGEABLE
SUNGLASSES
3508

Frequently Asked Questions

What is NSN 2815-01-543-0123?

NSN 2815-01-543-0123 is a Engine,diesel, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 2815 (No Item Name Available). Status: active.

What are the part numbers for NSN 2815-01-543-0123?

NSN 2815-01-543-0123 has 2 cross-referenced part numbers: 2W8406 (Caterpillar Inc Div Caterpillar Defense), 3508 (Caterpillar Inc Div Caterpillar Defense).

What NSN replaces 2815-01-543-0123?

There are 7 known substitutes for 2815-01-543-0123: 5365-00-755-6571, 6930-01-057-1958, 2530-01-178-6652 and 4 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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