GM part 24045729, the dual-clutch fluid filter for the 2020-up Corvette C8 TR-9080 gearbox, packed with the four mounting bolts.
Every C8 Corvette with the Tremec TR-9080 eight-speed dual-clutch is due for its first transmission filter change at 7,500 miles, and then again every 22,500 miles. If your Driver Information Center is showing the transmission maintenance reminder, or you bought a C8 used and cannot find a receipt for that first filter, this is the part: GM Genuine Parts 24045729, the canister filter kit with all four mounting bolts.
The TR-9080 is a wet dual-clutch gearbox. One fluid circuit cools and lubricates the gear sets and the two wet clutch packs, and it also feeds the hydraulics that apply those clutches thousands of times a day. GM's TechLink explains that the first 7,500 miles is the break-in period when the internal components shed the most material, which is why the external canister filter change at that mileage matters so much. After break-in the filter keeps catching the normal wear debris from clutches and gears so it does not circulate back through the clutch control valves. GM also notes the internal filter is not a service item; the canister is the part you replace.
A filter will not fix a harsh, clunky or slipping dual-clutch that is already throwing faults. That needs diagnosis first. Start with our guide to reading transmission live data and a capable scanner like the Autel MK808S bidirectional tool.
Check the odometer against the schedule: first filter at 7,500 miles, plus or minus about 1,000 miles per GM engineering, then every 22,500 miles. GM's guidance is not to change it early just to be safe. If a filter goes in more than 500 miles before the 7,500-mile mark, it still has to be replaced again near 7,500. The fluid itself runs on the fluid life system and must be changed at least every three years. Heat shortens fluid life, so track days count; see our transmission overheating guide.
GM 24045729 is listed for the 2020-up Chevrolet Corvette C8 Stingray and Z51 with the TR-9080 eight-speed dual-clutch. GM's TechLink covers the TR-9080 as RPO M1L and M1M on 2020-2024 Corvettes. Later model years and the other C8 trims are worth confirming by VIN. The part number 24045729 printed on the box is what you match. Some earlier stock was packaged under the ACDelco GM Original Equipment name with the same number. Send us your year and VIN if you want it checked before it ships. More filters and kits are in our rebuild and service kits section.
Do not reuse an old canister or swap in a generic filter on a gearbox that shares one fluid with its clutch packs. The filter is the cheapest part of the whole service, and the real GM part is the one the warranty records expect.
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GM calls for the first canister filter change at 7,500 miles, then every 22,500 miles after that. Engineering says plus or minus about 1,000 miles around the first change should not be harmful. Changing it early does not reset the schedule; it still needs a change near 7,500 miles.
Yes. The kit has the filter and four mounting bolts, so you do not need to reuse the old hardware.
GM specifies DCTF FFL-4 dual-clutch fluid for the C8. Shake each bottle vigorously before adding it, and do not use a general-purpose ATF in this gearbox.
GM says it reviews maintenance records on transmission warranty claims and recommends that owners who do their own filter service keep the receipt for the part. Use the genuine filter, record the mileage and date, and keep the paperwork.
No. GM states the internal filter is not a maintenance item. The external canister filter in this kit is the part on the schedule.
The listing covers the 2020-up Stingray and Z51 with the TR-9080. GM's TechLink names RPOs M1L and M1M on 2020-2024 Corvettes. For other trims or newer model years, send your VIN and we will confirm before shipping.
