NEW / OE IN SEALED GM PACKAGING.  The product is a genuine OEM GM 12675428 oil cooler coolant elbow adapter designed for the 2020-2025 L5P Duramax engine. Made of aluminum and featuring a bolt-on mounting style, this adapter comes with various interchange part numbers and is a heavy-duty, OEM component. It is a critical part that helps in the proper functioning of the engine's cooling system and is a reliable option for maintaining optimal performance and durability in your vehicle. I SHIP USPS MAIL , TRACKING & INSURANCE INCLUDED.