This billet adapter installs in place of the factory Duramax oil relief valve. It can be used as a direct oil source for turbos or used to support a adjustable pressure regulator.

Features:

• T6061 Billet Aluminum Plug
• -10AN Male Port (JIC)
• O-Ring Included
• Competition Use Only

Fitment:

2001-2016 LB7 LLY LBZ LMM LML Duramax 6.6L

Replaces GM 97328859

Note: The oil pressure relief valve is located in the passenger lower front portion of the front cover, adjacent to the balancer. 

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