Yanmar 4TNA78 Valve / Rocker Cover with Oil Fill Cap - Used

Application: Fits Yanmar 4TNA78 series 4-cylinder diesel engines (industrial and marine variants) — interior casting reads 4TNA78U. Cast-aluminum valve / rocker cover with integrated breather housing and OEM yellow oil filler cap. Condition: Used take-off in serviceable cosmetic condition; exterior paint is flaking and lightly oxidized, sealing flange looks straight. Gasket, seals and hardware are not included. 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.