6T50 Overhaul Kit, new and ready to install. Fits the 6T50. Ships fast from the USA.
If your Malibu, Regal, Verano, Captiva or Envision with the 6T50 six-speed is leaking from more than one spot, engaging late when cold, or slipping as it heats up, the problem is usually rubber and Teflon that has given up, not a hard part. This is the genuine GM overhaul seal kit, part number 24292133, sold under the ACDelco name and listed for the 6T40, 6T45 and 6T50. It is the reseal half of a rebuild: the gaskets, lip seals, O-rings, sealing rings and filter that make every clutch circuit hold pressure again.
The 6T50 is the heavy-duty member of GM's front-drive 6T family, rated at about 350 Nm and filled with roughly 8.2 liters of DEXRON VI. Like the 6T40 and 6T45 it has no bands. Each gear comes from applying two of five clutches, and every apply is pure hydraulics: oil leaves the pump, passes through the valve body and the control module, crosses into rotating drums through sealing rings, and pushes a piston sealed by molded lip seals. If any one of those seals or rings leaks, the clutch fills slowly, the module sees slip, and it answers with longer, harsher shifts until a ratio code sets.
GM catalogs 24292133 as a seal kit for automatic transmission service. It has since been superseded, first to 24042860 and then to 24055711, and that later kit is cataloged on 2013-and-newer GM cars and crossovers. The photo shows what you get: valve body and case gaskets, the filter, lip seals, sealing rings, O-rings and the small seals for the case and covers. There are no frictions, steels or bonded pistons in it.
Check fluid level and condition first, then find where the oil is actually coming from. Our guide to 6T40 family leak spots walks through the usual suspects. If the complaint is late engagement rather than a leak, read the delayed engagement guide, because a low level or a clogged filter can mimic worn seals. Burnt fluid and lots of friction material on the magnet mean the clutches are gone too, and this kit alone will not fix that.
The listing names the 6T40, 6T45 and 6T50 in 2014 to 2025 Chevrolet and GMC applications, and GM's superseding number is cataloged from 2013 up. That makes this the later-generation kit. Early first-generation units, built through about 2011, changed in 2012 with a revised 4-5-6 clutch and pressure switch changes, so they need the 6T50 Gen 1 rebuild kit for 2008-2011 units instead. Read the RPO code on your service parts label (MHK front drive, MHJ all-wheel drive) and the model year, then match the old gaskets to the photo. If in doubt, send us your year and VIN before ordering. You can browse other kits on the rebuild kits page.
Budget for frictions and steels if they are glazed, and price the whole job with our 6T40 rebuild cost breakdown before you start.
| Fits | 6T50 |
| Part type | Overhaul Kit |
| Condition | New |
| Brand | ACDelco |
| Reference | 24292133 |
| Ships | From the USA |
| Warranty | 1-year |
No. GM 24292133 is the seal and gasket side of an overhaul: gaskets, lip seals, O-rings, sealing rings and the filter. Frictions, steels and bonded pistons are separate parts.
Probably not. This kit is the later-generation GM number, cataloged from 2013 up. First-generation units built through about 2011 use different parts, so use our Gen 1 6T50 kit or send us your VIN to check.
The listing covers all three. The 6T40, 6T45 and 6T50 share the same basic case and clutch layout, and GM catalogs one service seal kit across the later family. Confirm your generation by model year and RPO code.
DEXRON VI. The 6T50 holds about 8.2 liters total. Set the final level hot with the engine running using the check plug procedure.
Yes. Clear the old adapts and run the clutch adaptive relearn so the module learns fill times for the new seals and any new clutches. Shift quality will be poor until it does.
