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The Mishimoto X-Line aluminum radiator for 1955–1959 GM 3100 Series trucks provides an all-aluminum replacement with a 3-row core to enhance cooling capacity and durability. Market details emphasize increased heat dissipation, improved structural rigidity and greater coolant volume to reduce engine temperatures compared with the original radiator, aimed at classic truck restorations and upgrades.
Mishimoto 55-59 GM 3100 Series X-Line Aluminum Radiator
