When a routine fluid service on an 8L45, 8L50E, or 8L90 automatic transmission calls for a filter change, this 2-piece set puts both required consumables in one shipment: a bottom oil pan gasket and a filter sized for these units. What makes this set different from a broader rebuild kit is exactly its focus: only the parts that get replaced at a standard fluid service interval, nothing more and nothing less, so you are not paying for components that go back in reused.The filter is designed for the 8L45 and 8L90 and screens the fluid before it reaches the valve body and clutch circuits. A clogged or collapsing filter restricts flow and raises line pressure irregularities, so replacing it at service is standard practice on this platform. The oil pan gasket seals the bottom sump against leaks after the pan is dropped and cleaned; on this transmission family the gasket does not reuse reliably, making a fresh one the only sensible choice.This set does not include friction discs, steel plates, thrust washers, sealing rings, solenoids, or any electrical components. If the unit requires a full overhaul, you will need additional parts beyond what is here.Assembled since 1991 in automatic transmission parts, each set is put together by hand, part by part, and checked against its parts list before the box closes. That list ships inside the box so the technician at the bench can confirm both pieces on arrival without hunting for documentation.Application covers 8L45, 8L50E, and 8L90 units from 2015 to present. Confirm the transmission code directly on the unit and the model year before ordering. This 2-piece set covers the two consumable items most needed at fluid service: the bottom pan gasket and the transmission filter, keeping the sump sealed and the fluid circuit clean. This set does NOT include friction discs, steel plates, sealing rings, bands, or any other rebuild components. If your job requires those parts, verify what you need before ordering. Both the filter and the gasket are matched to the 8L45, 8L50E, and 8L90 family, so you are not adapting parts from a different application or trimming a universal gasket to fit. Exact contents: 1 bottom oil pan gasket for 8L90E and 1 filter for 8L45 and 8L90. Total shipping weight is 1 lb. A parts list inside the box lets you confirm both items at receiving. Before ordering, verify the transmission code stamped on the unit and the model year falls within 2015 to present. This set does not fit other 8-speed variants outside this family.