Motorcraft RS-58 Radiator Pressure Cap 13 lb for Ford Marine/Industrial Heat Exchanger - Used

Application: Motorcraft RS-58 locking-tab radiator/heat exchanger pressure cap, commonly used on Ford marine and industrial engine cooling systems and vintage Ford radiators with the two-tang filler neck. Condition: Used take-off with weathered paint and surface corrosion; sealing surfaces present but not pressure-tested — recommend testing before installation. 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.