I have a 2007 Ford Explorer and thought it was time to replace the starter since my wife is disabled and I did want to take the chance of getting stuck somewhere. On 6/16/19 I purchased a new Motorcraft starter from Rock auto. Several months later we were 106 miles away from home and the starter failed too start. I had to pay for a tow new starter and the core otherwise we were stuck. Upon getting home I emailed the Rock NON customer service and were emailed to send it back, partially at my own expense, for a replacement. If I had not bought a new starter I would still be stuck but apparently Rock auto NON customer service could care less.On 2/28/20 I received an email from Rock auto NON customer service the starter had been delivered. I do not know where it was delivered to but not to me.So if I had relied on Rock auto non customer service my wife and myself would still be stuck 106 miles from home. I had also purchased a. Motorcraft front hub assembly on 1/20/20 and had it installed on the same date as the breakdown. The mechanic called and said after driving two tenths of a mile the bearing is no good as it is very loose. I had to now pay for the mechanic to purchase another hub assembly, the labor and the return of the defective part. At this point I am out $750 due to Rock auto apparently buying parts that are seconds. I guess that is how they sell lower than stores. Rock auto should use some of their TV advertising to create some sort of useful customer service. BEWARE OF APPARENTLY SECONDS BEING SOLD BY ROCK AUTO AND THE COMPLETE LACK OF ANY CUSTOMER SERVICE. I called the number on the web and the message stated "WE do not provide provide any phone customer service". I would give no stars but that was not an option