I need the name of this gm part number and I cant find it anywhere.

I see its the differential clutch oil pump flow check valve type the part number into the ebay search box it will come up. Says it fits that car.

You were lucky enough to find out how extremely customer-unfriendly GM is before you bought the vehicle and you still want to pursue it? Just because you have a part number doesn't mean you can actually buy the part. GM likes to sell assemblies instead of parts to repair them, but in the case of anti-lock brake systems, small parts other than pressure switches are often not available from any manufacturer. They don't want do-it-yourselfers or untrained / inexperienced mechanics working on critical parts on safety systems.

You also have to ask why someone would sell the vehicle needing "just this one part". If that's all that was needed to restore the system to proper operation, they would have done it. It's more likely they found out the hydraulic controller or computer needs to be sent out to a rebuilder, and the cost was going to be another typical $800.00 repair bill.

GM makes about 80 percent of their own parts. If this anti-lock brake system is made by another manufacturer like Bosch, Bendix, or Teves, other suppliers might be able to buy parts to resell under a different name, but if GM makes the part, it will cost about the same amount to buy it from any aftermarket source. There are a lot of aftermarket parts manufacturers that do a real good job of making improvements on factory parts, and they sell them at a lower cost, but when it comes to anti-lock brake systems, you are much less likely to find anything available thanks to lawyers and politicians. A lawyer will convince a jury that you were partly at fault for the crash when the other guy ran the red light because you were less able to avoid it. An insurance investigator will find evidence of parts being replaced or altered, and the aftermarket parts suppliers know they will become party to a lawsuit. That's why they aren't too excited about making or selling them.

The people at the dealer's parts department can tell you by the part number what it is, and what it will cost if it's available. They can also tell you if the computer has to be reprogrammed, which, of course, they don't do for free. You might also try the Rock Auto web site. They don't list parts by part number though. Parts that are available are on a list under "Brake / Wheel Hub". You have to look up each part by name, then you'll get a list of from one to dozens of suppliers for that part, and many of them will include the original part number with their description.

I just looked at the same list and found only four parts related to the anti-lock brakes. None of them have the original part number you listed. As luck would have it, Saturntech9 found the listing for you. It is not a part name I've ever heard of or am familiar with. If it's not on the Rock Auto web site, it is also likely to be not available from local parts stores. You might do an internet search for that number or part name but chances are it's going to be a dealer-only item.

I'm happy to say Saturntech9 also found it on eBay. I took a look at them to educate myself but I still don't know what it does or what it takes to install it. The fact that it's even listed suggests there's a market for it, so it could be that it's a high-failure item that a lot of people need, or it's a low-failure item that dealers have in stock and want to get rid of.

If I was going to try to replace this part, I wouldn't even start until I had the manufacturer's service manual and read the procedure first. Be aware that you never want to contaminate brake fluid with any type of petroleum product like engine oil, transmission fluid, power steering fluid, or axle grease. Experienced brake mechanics even wash their hands to remove fingerprint grease before handling brake parts. It only takes a little residue of oil on your fingertips to contaminate the entire hydraulic system, and that is a very expensive repair even when the vehicle doesn't have an ABS hydraulic controller.

The ebay listing said that there were two people watching that listing in the last 24hrs so I would say its a popular part. Also can you get the exact code numbers the vechile is setting?That would help explain the part etc. Also I personally like gm vechiles and have only owned gm vechiles except my first car which was given to me.

Iam not allowed to post links on here but took a pic of the ebay listing for the part number you gave.