Heavy-Duty Diesel Valve Spring Set (Inner & Outer) - Used Take-Off

Application: Heavy-duty diesel engine valve spring assembly — dual concentric (outer + inner) valve spring with yellow OEM paint ID mark on one end, consistent with Caterpillar or similar heavy-diesel cylinder head hardware. Exact engine model not confirmed from photos. Condition: Used take-off, sold as-is. Surface rust with partial original paint; not load-tested or measured. Suitable as a reference/core piece or for a rebuilder who will verify free length and spring pressure before reuse. Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.