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Factory coolant hose T fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your
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PPE 119020100 Upper Lower Coolant Hose Kit 01-05 Duramax
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PPE 119020100 COOLANT HOSE KIT 01-05 LB7 / LLY BLACK
PPE 119020100 Upper Lower Coolant Hose Kit 01-05 Duramax