8L45 Pump 2016, used and ready to install. Fits the 8L45. Ships fast from the USA.
If you are rebuilding a 2016 or later GM 8L45 and the front stator support is scored, cracked or chewed up by converter debris, this used OEM support is the direct replacement. It is a General Motors stator support shaft assembly, part number 24288795, with casting number 24277228, pulled from a 2016-up 8L45. The 8L45 is the lighter-duty eight-speed GM put behind four-cylinder and V6 engines in cars such as the Camaro and Cadillac CTS and in midsize trucks such as the Colorado and Canyon. Shoppers looking for an 8L45 pump often actually need this piece, because the support carries the stator shaft that the converter rides on.
The 8L45 shares its basic layout with the 8L90: a chain-driven pump mounted off the input axis, and a stator support at the front of the case. The support's job is mechanical and hydraulic. Its splined shaft anchors the torque converter stator so the one-way clutch can lock it during torque multiplication, and drilled passages inside it route converter feed, converter release and front clutch oil past the spinning input shaft. Sealing rings on the input shaft run in bores in the support, so wear there bleeds off oil that should be applying the converter clutch or a clutch pack.
GM revised the 8L45 support (updated part 24277230 per GEARS Magazine) with an extra check ball and changed passages because air trapped in the stator cover circuits on early units caused delayed engagement and the transmission dropping out of gear at a stop. Before installing any used support, look at your original and this one side by side so you know which version you are putting in.
Most 8L45 no-move and low-pressure complaints are not the stator support. Rule out a missed fast learn reset, pump prime failure and a misassembled pressure regulator first; our 8L45 and 8L90 pump failure guide walks through each. If the unit is apart, inspect the seal-ring bores for steps you can catch with a fingernail, check the stator splines for twisting, and look at the converter-side bushing. For shudder complaints read our 8L90 and 8L45 common problems guide before buying hard parts.
This part is listed for 2016 and later 8L45 transmissions, GM number 24288795, casting 24277228. It does not fit the larger 8L90. The 8L45 was also built in CPA and non-CPA versions; the standard stator has a bushing on the converter side, while the CPA stator shaft is shorter with no bushing, and GEARS warns you cannot convert one to the other. Match the casting number, shaft length and bushing style to your old part, or send us your year and VIN to verify. See every 8L45 and 8L90 part on our 8L90/8L45 collection page.
| Fits | 8L45 2016 |
| Part type | Pump |
| Condition | Used |
| Brand | OEM |
| Reference | 24288795 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No. It is the used GM stator support shaft assembly, part 24288795. The 8L45 pump rotor set is mounted off-axis and chain driven, and is not part of this listing.
It is listed for 2016 and later 8L45 units. Compare the casting number 24277228 and shaft design to your original, or send your VIN so we can confirm.
No. GM uses different stator supports for the two units, so order the one that matches your transmission.
It can if the cause is the stator support. Early units trapped air in the stator cover passages, which GM fixed with a revised support. Check fluid level, adapts and pump prime first.
DEXRON HP, which GM specifies for the 8L45, with a fluid change capacity of about 7.4 quarts.
