Onan 110-1808 Engine Valve - NOS

Onan (Cummins Onan) 110-1808 engine valve, new old stock in the original Onan Genuine Parts box.

Application: Onan-branded engine/generator valve, OEM part number 110-1808 as stamped on the original factory box. The box does not indicate intake or exhaust, and no engine model is listed on the packaging — application is not verified and must be confirmed against the parts list for your specific Onan engine/generator model and spec.

Condition: NOS (new old stock), unused. No seat wear, no stem scuffing, no stem-tip peening or combustion deposits. Light shelf-storage discoloration on the head. Original Onan box is aged, soiled and split at one end as pictured. Untested/uninstalled.

Approximate dimensions (photo estimate): overall length ~5.0–5.5 in, head diameter ~1.25–1.40 in, stem ~5/16 in. Exact micrometer measurements available on request.

Quote is subject to final fitment confirmation by engine/transmission serial number, part number, photos, and supplier availability.

Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase.