Description
Application: Detroit Diesel 71 Series inline engines (3-71 / 4-71 / 6-71 family) — cast iron oil cooler cover / housing, casting 5117353 SCC.
Condition: Used take-off, original blue paint flaking with surface rust on bolt bosses and light casting-edge wear. Sealing faces appear intact; recommend cleaning and inspection before installation. Sold complete as pictured.
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.




