Photorealistic image of ISB 6.7 engine with cutaway showing cast-iron parent-bore cylinders, coolant passages, and a technician using a bore gauge.

Is Cummins ISB XT 6.7 a Wet Sleeve Engine? Clear Technical Answers

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Is Cummins ISB XT 6.7 a wet sleeve engine? Learn why the ISB XT 6.7 uses a parent-bore block and what that means for cooling, repair, and parts.

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