Northern Lights / Lugger Valve Cover for M864 4ADEL2.491DZ 2.5L Marine Genset Engine - Used

Application: Used valve / rocker cover for Northern Lights / Lugger marine generator engines built by Alaska Diesel Electric (Seattle, WA), engine family 4ADEL2.491DZ, model AD-M864E6-04 — 2.5L (2486 cc), 4-cylinder, 29.4 kW constant-speed diesel genset. Condition: Used take-off. Cast aluminum, finned, with four rocker/injector access ports, breather nipple, and factory 'ENGINE OIL' fill cap. Paint is chipped/worn with light oil staining and surface oxidation; sealing flange appears intact in photos. Sold without gasket or seals — replace on install. Drained and ports capped before shipping. 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.