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9Y4124 — PISTON,INTERNAL COMBUSTION ENGIN

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

9Y4124: PISTON,INTERNAL COMBUSTION ENGIN.

PISTON,INTERNAL COMBUSTION ENGIN. Key specifications include head_style: DISH, pin_type_for_which_designed: LOCKING. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-317-4867, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
9Y4124
NSN: 2815-01-317-4867
FSC: 2815 — Diesel Engines and Components
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
head_styleDISH
ring_groove_quantity3
pin_type_for_which_designedLOCKING
NSN2815-01-317-4867
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available PISTON,INTERNAL COMBUSTION ENGIN TITLE COMPONENT PN 9Y4124 MFR PISTON,INTERNAL COMBUS
KEY FEATURES
•
PIN TYPE FOR WHICH DESIGNED: LOCKING
•
HEAD STYLE: DISH
•
RING GROOVE QUANTITY: 3
TECHNICAL CHARACTERISTICS
PIN TYPE FOR WHICH DESIGNEDLOCKING
HEAD STYLEDISH
RING GROOVE QUANTITY3
OTHER ITEMS IN FSC 2815 — Diesel Engines and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2815-00-000-0075 2815-00-001-0022 2815-00-001-3475 2815-00-001-7728 2815-00-001-7737 2815-00-001-7805 2815-00-001-7806 2815-00-001-7813
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9Y4124?
9Y4124 is a PISTON,INTERNAL COMBUSTION ENGIN.
What is the NSN for 9Y4124?
9Y4124 is cataloged in the U.S. Government catalog under NSN 2815-01-317-4867. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.