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The BorgWarner Super Core EFR B1 6258 is offered as a core assembly in the EFR series, identified by the EFR B1 6258 designation. It serves as the rotating core for compatible EFR turbo configurations and is intended for cartridge-level replacement or rebuild work where that specific EFR core is required. Verify housing and wheel compatibility when fitting this super core.
BorgWarner Super Core EFR B1 6258
