OEProofOE-verified aftermarket transmission & engine seals

The right part for the right side of the transmission.

GM 6T30 / 6T40 / 6T45 seals, filters and repair parts — listed by exact OE number, with transmission code, year range, left/right designation, and an explicit list of what each part does not fit.

Browse the 6T catalogue Send a part number

Why we publish exclusions, not just fitments

On a 6T40/6T45, the left and right output shaft seals are not interchangeable. 24230682 is right-hand. 24230715 is left-hand. We have found supplier catalogues that list these two numbers reversed — including within the same catalogue.

Fitting the wrong side means pulling the transmission a second time. The workshop does not lose the price of the seal — it loses the labour. That is the failure we are trying to remove from your order.

What is on every part page

Exact OE number

No "equivalent to" and no size-only listings. The OE number is the identity of the part.

Transmission code + year range

6T30 / 6T40 / 6T45, generation where it matters, and the model years the part covers.

Explicit exclusions

What the part does not fit, and which numbers it must not be cross-sold with.

Left / right designation

Stated on the page, and written into the number itself — so it survives the quote, the packing list and every copy in between.

Verification status

Confirmed, probable, or unverified — shown openly. We do not present an assumption as a fact.

Open questions

Where the data is not closed, the page says so and tells you what to check against your VIN.

Selected OE references

The table below is a short sample. Use the full catalogue for the current public OE list and commercial status. Quote Request means you can send the OE, quantity and destination for a current commercial check. Commercial Check means the technical reference is published, but availability, purchase price, MOQ and lead time are checked before quoting. Neither status guarantees stock.

OEPartTransmissionStatus
24237508Transmission filter, Gen 16T30 / MH9 CONFIRMED View
24268086Transmission filter, Gen 26T30 / MH9 Gen2 CONFIRMED View
24230700Pump / stator seal6T40 / 6T45 CONFIRMED Catalogue
24230682Output shaft seal — RH6T40 / 6T45 CONFIRMED Catalogue
24230715Output shaft seal — LH6T40 / 6T45 CONFIRMED Catalogue

See the full 6T catalogue and current commercial status