Replace worn or damaged intercooler outlet O-rings with new oil and chemical resistant Buna-N oil rings from DHD. OEM O-rings often hardened a break down over time, creating leaks on higher mileage trucks.
2 Required per truck (Upper & Lower)
Features:
Fits:
LBZ LMM 2006-2010 Duramax 6.6L
Replaces GM # 19121496
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