When the pan comes off a 4L80E or 4L85E and you need a replacement filter for the deep pan configuration, the geometry of the pickup neck matters as much as the fitment of the mounting flange. This filter carries 4 raised projections that locate it correctly against the valve body spacer plate, keeping the pickup inlet at the right depth and angle for proper fluid draw. A filter without those projections, or with fewer of them, will not seat the same way and can leave gaps that allow unfiltered fluid to bypass or restrict flow before it reaches the pump.This is a single filter unit for automatic transmission models 4L80E and 4L85E, covering production from 1997 onward. The listing is for the filter alone. It does not include a gasket, a pan gasket, an o-ring kit, solenoids, frictions, steels, or any other component. If you are doing a full service or overhaul, you will need to source those separately.The 4L80E and 4L85E share this filter application, but not every unit in this family uses the deep pan. Before placing the order, pull the pan and confirm that your existing filter has the raised projection configuration. If your current filter has a flat or smooth neck without projections, this is not the correct replacement for your unit.At 1 lb shipping weight, this is a straightforward single-piece order. The part ships from REMCO, which has been working in automatic transmission parts since 1991, and every item is checked against its part record before it leaves. Confirm your transmission model, the pan depth, and the projection count on your original filter, and this replacement drops straight in. Deep pan design with 4 raised projections positions the filter correctly inside the pan, reducing the risk of pickup restriction or misalignment during reassembly. This listing covers one filter only. It does not include a gasket set, seals, solenoids, band, steels, or friction discs. Verify your full parts list before ordering. The raised projection geometry on this filter is specific to deep pan configurations on 4L80E and 4L85E units built from 1997 onward. A standard flat-neck filter is not interchangeable with this design. Contents: 1 transmission filter with 4 raised projections, deep pan application. Shipping weight: 1 lb. Before ordering, confirm your transmission code is 4L80E or 4L85E and that your unit uses the deep pan with raised projection filter mount. Shallow pan builds use a different filter.