06D103251 Volkswagen dowel pin

These little guys are basically just cylindrical rods, usually made of metal, and they’re used for precise alignment. Think of them like tiny, super – accurate centering tools. They fit snugly into holes to keep things lined up perfectly. They guide parts during assembly and help distribute loads evenly. Sometimes they’ll even act like a shield, protecting threads from shear forces. You’ll find dowel pins all over, but especially inside the engine. They’re used to align things like connecting rods, valve covers, timing covers, and even parts of the engine block itself. They ensure that everything goes together square and stays that way. They’re not something you’d see out in the open; they’re all hidden inside the engine's guts. If those parts aren’t aligned just right, you’re going to have problems. It can lead to vibrations, oil leaks, premature wear, and eventually, engine failure. It’s one of those small parts where failure can cause a big headache. If you’re doing engine work, it's always a good idea to replace these while you’re in there; they're inexpensive, and it saves you potential trouble down the road. You can find a good selection of them, including the right size for your vehicle, over at Fixparts Online if you're looking. You’ll notice if one’s gone bad usually during a rebuild—things just won’t quite fit together right. Your satisfaction is our priority: Dowel Pin (MPN 06D103251) includes a 12-month warranty!

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