How to know which replacement part code to buy

“Anyone knows rh name of this tube that sits below the rotating sprayer arm in dishwasher (model KDTM404EWH1)”source ↗

“I cant find genuine goodman parts for my aircon unit anywhere in town. I am also struggling to find them online.”source ↗

“I can source alot of replacement models on amazon, but they all have strange names. Is there an aftermarket brand you trust?”source ↗

“I lost the o ring on my transmission cooling lines (1992 cadillac) and idk which one to put on now. One is tighter and more snug but the other looks like itll cover more when its squished against the trans.”source ↗

“Went to replace a blown fuse on this Van and I found the Low Profile Mini fuses I have do not appear to be compatible with this fuse block, they are wider than the ones in the fuse block. Is there a specific style of use I need?”source ↗

“Decided to start doing my own oil changes, but I'm having a tough time tracking down the recommended filter for my 2016 Malibu.”source ↗

“The manual specifies the UPF64R, but this seems to be out of stock nearly everywhere except for some pretty stringent markups in places.”source ↗

“All other filters listed there have less bypass valve PSI and a different micron rating.”source ↗

“A mechanic quoted me on hub and bearing kit and I put that part number in and its showing me the kind with no sport suspension is the mechanic wrong or do I actually need the non sport suspension one?”source ↗

“Yes I did quite extensively. None of them come with that part as far as I can tell. I even looked Toyota schematics trying to get the name so I can look for the right part but it’s all numbers that don’t pull up anything online.”source ↗

“I got the parts in my cart. Just trying to make sure I got the right ones.”source ↗

“07jeep compass 2.4L. I also need ball joint but I think it comes with the tie rod end”source ↗

“I can't seem to find any hose with the same threads as this. It seems like a generic faucet, I don't see any branding.”source ↗

“There's a leak in the hose itself unfortunately.”source ↗

“no where in any documents can we find what the part number is to order it for the other hose as it looks like it needs it as well for once the replacement part comes.”source ↗

“Whirlpool chat support is garbage and won’t help without a part number. Any ideas as to what this is called?”source ↗

“The Maytag web site is useless and won't recognize the model.”source ↗

“I have searched high and low for a replacement drain motor for a Magic Chef washing machine. Everything I’m finding is 220v. I am in the US and need 110v. The machine is 5 years old. I hate to replace the whole machine when I know a $30 part would fix it.”source ↗

“I need the Control Arm for the driver side only. The other side is fine. If you can help me, find that part either on Amazon, ebay, or RockAuto (dot) com, it would help me out a lot.”source ↗

“I'm trying to replace my front rotors on my camry but I don't know what to pick. First time seeing “plain hat”, “stepped hat” rotors.”source ↗

“There in lies the problem, finding a replacement, if I understand correctly the Rav 4 mirrors have a little ball and socket joint in that whole at the center there, but the mirrors I am seeing none of them include that piece.”source ↗

“Now I know the bare minimum about cars, so maybe I misunderstand but if someone could recommend a good Rav 4 mirror replacement or help me with the wording I need to find one online I would really appreciate the help.”source ↗

“Does anybody know the correct burner cap for this?”source ↗

“So I’m trying to replace my brake rotors and pads for a 2005 Cadillac CTS. But when looking online I see two listings for brake/rotor kits for brake code JL9 and RPO code FE1.”source ↗

“So I checked my service parts sticker and I see both codes on it. Which do I get? Does it matter?”source ↗