I purchased the assembly from Rockauto Moog #513179 in May 2014 and it'* bad already. I had one replaced by the dealer under warranty 4 years ago and it'* still going strong. I'm getting the Moog part replaced under warranty, but for my future bearing needs I think I'll be using the dealer

Timken and SKF are generally considered the best for aftermarket

Thanks

Yeah, there is a reason why some bearings are much cheaper than others....

I installed the warranty replacement, hope this one lasts longer.

The ABS light came on and the reader indicated the right front bearing I replaced was the culprit. It indicated a problem with the ABS signal circuit. I disconnected the battery, inspected the harness and didn't find any issues. I reconnected the harness, the battery and started the vehicle. The ABS light was off and I cleared the code from the pcm history. I did however find grease seeping from the inner seal, I called Moog and was told to send it back for replace. Any ideas as to why this happened or is it that I just happened to get a defective bearing.

New bearing looks a lot different than the one Rockauto sent before. Also they no longer have the Moog part in the automobile look up, you have to enter the part number to find it. I was told they are not selling as compatible with my vehicle anymore. Back to the bearing, the new one has an H after what may be a serial number. I took pics so the difference can be seen, your thoughts on the matter are welcomed.

Looking at the difference in the 2 hub assemblies, counterfeit on the first one was the first thing that popped into my mind so I went to Moog'* website and sure enough they do have a problem with counterfeit products, probably Chinese knockoffs. Check their website out. Your post wasn't clear on whether you returned the defective assembly to Moog or Rockauto, but in any case I'm sure Moog would be interested in your experience and pictures.

2004 Bonne SLE
1971 Chevelle SS

I sent it back to Rockauto, the new one was a warranty replacement. I'm hearing that it was a case off getting rid of old Moog stock, before selling the redesigned ones. The Old design had a yellow coating on the wheel studs and the new design has black.

I was sent another replacement part by mistake and it was the old generation. One of the problems when ordering online, I'm just glad I received the next gen during the first replacement.