Servicing the A606 42LE automatic transmission correctly means replacing both filter positions, and this listing covers the upper one. The upper filter on this unit sits directly above the valve body and is a separate serviceable component from the lower filter, a distinction that catches many technicians off guard when they discover their rebuild kit did not include it.Fluid that passes through a restricted or worn upper filter loses pressure before it ever reaches the valve body circuits. That drop in pressure can show up as delayed engagement, erratic shifts, or codes that point elsewhere while the actual cause sits in the filter housing. Swapping this filter during a full service eliminates that variable and lets the rebuilt unit start fresh with clean, unrestricted flow.This is a single filter unit weighing 1 lb, sized for the upper position on A606 42LE transmissions from 1993 onward. It does not include the lower filter, a pan gasket, seals, solenoid harness, or any other component. If your service requires the lower filter or additional parts, those need to be sourced separately.Before placing the order, confirm the transmission identification code on the actual unit, not just the vehicle application. Also confirm which filter position you are replacing. Ordering the wrong position is the most common mistake on this platform, and a few seconds of verification saves a return shipment. Restores proper fluid flow through the valve body and prevents pressure loss caused by a clogged or degraded upper filter on A606 42LE units. This listing covers the upper filter only. It does not include a lower filter, pan gasket, seals, or solenoids. Verify which filter position you need before ordering. The upper filter sits above the valve body in the A606 42LE, a position that is often overlooked during service. Replacing it as part of a complete service corrects fluid restriction at the source. Single upper filter unit, 1 lb shipped. Designed specifically for the upper filter location on A606 42LE automatic transmission assemblies built from 1993 onward. Before ordering, confirm the transmission code on the unit and that your application uses the A606 42LE. Verify the filter position required: upper or lower. This part covers the upper position only.