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3966658 — SHAFT,ROCKER ARM,ENGINE POPPET V

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

3966658: SHAFT,ROCKER ARM,ENGINE POPPET V.

SHAFT,ROCKER ARM,ENGINE POPPET V. Key specifications include special_features: CUMMINS ATLANTIC 8.3 DIESEL ENGINE, end_item_identification: DIESEL ENGINE, engine_model_number_for_which_designed: QSC8.3 6C8 ISC ISL CM2150. This part is cataloged in the U.S.

Government catalog under NSN 2815-01-566-7979, 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
3966658
NSN: 2815-01-566-7979
FSC: 2815 — Diesel Engines and Components
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
special_featuresCUMMINS ATLANTIC 8.3 DIESEL ENGINE
end_item_identificationDIESEL ENGINE
engine_model_number_for_which_designedQSC8.3 6C8 ISC ISL CM2150
NSN2815-01-566-7979
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SHAFT,ROCKER ARM,ENGINE POPPET V TITLE COMPONENT PN 3966658 MFR SHAFT,ROCKER ARM,ENGIN
KEY FEATURES
•
ENGINE MODEL NUMBER FOR WHICH DESIGNED: QSC8.3 6C8 ISC ISL CM2150
TECHNICAL CHARACTERISTICS
ENGINE MODEL NUMBER FOR WHICH DESIGNEDQSC8.3 6C8 ISC ISL CM2150
SPECIAL FEATURESCUMMINS ATLANTIC 8.3 DIESEL ENGINE
END ITEM IDENTIFICATIONDIESEL ENGINE
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 3966658?
3966658 is a SHAFT,ROCKER ARM,ENGINE POPPET V.
What is the NSN for 3966658?
3966658 is cataloged in the U.S. Government catalog under NSN 2815-01-566-7979. 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.