Detroit Diesel Inline Marine Diesel Engine Core - Used

Application: Detroit Diesel inline 2-stroke marine diesel engine, appears to be a 53-series (likely 4-53) marine unit; block stamping reads '4C89 5101336'. Condition: Used core / untested — heavy exterior rust and weathering, no run or compression history, no transmission attached, bell housing open. Sold as a rebuildable core. Fluids will be drained and ports capped prior to 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.