Detroit Diesel 4-71 Chrome Valve Cover / Rocker Cover - Used

Application: Detroit Diesel 71-series inline engine, most likely 4-71 (also used across 3-71 / 6-71 family in variant lengths) — marine, industrial, and genset applications. Chrome-plated cast valve/rocker cover with 'Detroit Diesel' script and DDA logo, twin raised filler/breather bosses, and a large center breather opening. Condition: Used take-off. Chrome is pitted and stained with light surface corrosion and interior oil residue; no cracks noted. Gasket, breather, and oil fill cap 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.