Pan filter and rubber-coated steel pan gasket for GM 8L90 and 8L45 8-speeds, the two parts you replace on every pan-drop fluid and filter service.
Doing a pan-drop service on a GM 8L90 or 8L45? This kit gives you the two parts that matter: a replacement transmission filter that crosses to GM 24274402, 24295812, 24268875 and 24298900, and a rubber-coated steel pan gasket that follows the steel-core design of GM 24260071. It is the right kit for a Silverado or Sierra 1500 that tows, a Colorado or Canyon with the 3.6L, an Express or Savana van, a Corvette or Camaro, or a Cadillac with the eight-speed, when the fluid is due, the unit is shuddering, or you are cleaning up after a repair.
The 8L90 and 8L45 use an off-axis, chain-driven pump that pulls fluid from the pan through this filter. Everything downstream, the valve body, the variable force solenoids and the converter clutch circuit, depends on clean fluid at full volume. These units shed friction material during normal clutch-to-clutch shifting, and the filter catches it. When the filter loads up, the pump works harder to pull fluid, which can mean noise, delayed engagement and heat. The pan gasket seals 15 pan bolts against the case, and the steel core in this gasket keeps it from squeezing out or crushing when the bolts are torqued.
Look at the fluid and the pan. Heavy clutch material or metal on the magnet means a filter service will not fix the underlying problem, and the unit needs diagnosis. A light gray paste is normal wear. For a shudder complaint, our 8L90 filter and pan service guide covers fluid, torque and the level set, and the 8L90 high-mileage service checklist covers what else to inspect while the pan is down.
Per the listing, the kit fits 2019-2021 Silverado and Sierra 1500 2.7L, 2016-2022 5.3L, 2015-2018 6.2L, 2022 Silverado and Sierra 1500 LTD/Limited, 2017-2023 Express and Savana 2500/3500 2.8L and 4.3L, 2017-2022 Colorado and Canyon 3.6L, 2015-2019 Corvette 6.2L, 2016-2019 Camaro, 2016-2017 Yukon 6.2L, and Cadillac ATS, CT4, CT6, CTS and 2015 Escalade with the 8L45 or 8L90. Some of these years overlap with the 6L80 or 10L80 on certain trims, so confirm the transmission RPO code on the service parts label, or match your old filter to the GM numbers above. You can also send us the year and VIN. Every other part for these units is on the 8L90 / 8L45 parts page.
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Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Yes. The filter crosses to GM 24274402, 24295812, 24268875 and 24298900, which cover both eight-speeds. Confirm your transmission code before ordering, since some trucks in the same years used a 6L80 or 10L80.
GM says the original gasket can be reused if it is undamaged and not stuck to the pan or case. In practice many come off torn or stuck, and the steel-core gasket in this kit is a reliable replacement when that happens.
GM lists a 7.0 L (7.4 qt) fluid-change capacity for the 8L90. Have at least that much DEXRON HP on hand and set the final level hot at the check plug, not by the number of quarts.
If the cause is contaminated fluid, fresh DEXRON HP and a clean filter are the start of GM's fix, which uses a full fluid exchange. If the shudder persists after correct fluid, the converter or valve body needs diagnosis.
GM bulletin 16-NA-014 specifies 10 N-m (89 lb-in) for the 15 pan bolts. Tighten in a cross pattern so the gasket seats evenly.
