Taida GY6 150 Long Dowel Pin (10mm x 20mm) - Pair

Running a Taida cylinder spacer? Your stock dowels just came up short. Literally.

The factory GY6 150 cylinder base dowels are 10mm x 16mm, sized to locate the cylinder directly on the case. Add a spacer under the jug and those stock pins don't reach far enough into the cylinder to index it properly. These Taida long dowel pins add the extra length needed to bridge the spacer, so the cylinder locates square on the case the way it's supposed to.

Same 10mm OD as stock, stretched to 20mm long. Drop them in the case, stack your spacer and base gaskets, and the cylinder seats with proper alignment. No guessing, no shimming, no crooked jug.

Why it matters Dowels aren't just "nice to have." They hold the cylinder in position while you torque it down and keep it from shifting under load. A dowel that barely engages can let the cylinder walk, which leads to gasket blowouts, oil leaks, and uneven head clamping. If you're building a stroker or big bore with a spacer, this is a cheap part that protects an expensive build.