Feature 1Applicable Model: Transmission cooler line adapter plate kit fits all 6L80E, 6L90E, 8L90E (6 and 8 speed automatic transmissions). 2OE Number: 551121 6AN is the reference part number, it can ensure a perfect match, helping you to find exactly what you need. 3Great Replacement Part: This kit allows the use of aftermarket AN hose fittings to build your own custom transmission cooler lines. 4Package Including: Trans cooler line adapter plate kit includes factory gasket and 6AN fittings adapters for transmission line size. 5Billet Aluminum: Trans cooler line adapter plate is made of aerospace grade billet aluminum material, anti rust, wearproof, not easy to break.Item Type:TransmissionCoolerLineAdapterPlateMaterial: Billet AluminumOE: 551121 6AN Applicable Model: Fits all 6L80E, 6L90E, 8L90E (6 and 8 speed automatic transmissions) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List2 xFitting1 x Gasket1 x AdapterPlateNote1. Please double check the part number of your item, matching information is for reference only.2. If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!