Replacing the main transmission filter under the side cover is one of the steps that directly affects how the 4T80E behaves after a rebuild, because a worn or blocked Automatic Transmission Filter limits fluid delivery to the circuits that control shift feel and clutch apply pressure. This is the Automatic Transmission Filter for that specific location, the main Automatic Transmission Filter seated under the side cover on the 4T80E automatic transmission, and it fits units built from 1993 forward.
When fluid cannot move ly through a restricted Automatic Transmission Filter, the valve body and clutch packs work against an inconsistent pressure supply. Swapping the Automatic Transmission Filter at rebuild time removes that variable and gives the reconditioned unit a clean baseline to operate from.
This listing is a single Automatic Transmission Filter. It does not include gaskets, seals, o-rings, secondary Automatic Transmission Filters, clutch discs, steel plates, bands, or any other rebuild components. If your job calls for those parts, they need to be sourced separately. Review your parts list against what this item covers before placing the order.
The Automatic Transmission Filter is stocked and shipped from the REMCO warehouse, where each item is verified before it goes out. REMCO has worked in automatic transmission parts since 1991, and individual components like this one are held to the same checking process used on full rebuild kits.
Before ordering, confirm two things: that the transmission code on the unit is 4T80E, and that the build date is 1993 or later. The under-side-cover position is specific to this unit, and fitting the wrong Automatic Transmission Filter to that location will affect fluid routing through the main circuit.
- Restores proper fluid flow through the main circuit, reducing the pressure irregularities that accelerate wear on clutch packs and valve body components inside the 4T80E unit.
- This listing covers the main transmission filter mounted under the side cover only. It does not include any other Automatic Transmission Filters, gaskets, seals, o-rings, bands, clutch discs, or steel plates. Check your rebuild list before ordering.
- The main transmission filter in the 4T80E sits in a position that directly affects line pressure consistency. Replacing it at rebuild time removes the restriction a clogged or degraded Automatic Transmission Filter creates in the fluid circuit.
- Single Automatic Transmission Filter unit, 1 lb shipping weight. Designed specifically for the under-side-cover main Automatic Transmission Filter location on 4T80E automatic transmission units.
- Before ordering, confirm the transmission code on the unit is 4T80E and that the build date falls within the 1993-and-up range this Automatic Transmission Filter covers. Not all Automatic Transmission Filters fit the same position.
What's in the box
- 1 x Automatic Transmission Filter, 4T80E Oil
Compatible vehicles
- Fits Lucerne [06-11], Deville [94], DTS [06-11], Eldorado [94-02], Seville [94-04], Aurora [95-03], Bonneville [04-05].