Lock valve spring retainer (cotta)

There are single bead lock types and multi bead free (rotating) types!

last updated Apr 28, 2026

Retainer valve spring

After cold continuous forming of alloy steel for die forging using a former, heat treatment is performed, and it is delivered to a famous automobile manufacturer!

last updated Jun 15, 2026

VVT, VTC lock pin

The lock pin is released by hydraulic pressure, and it is adjusted to achieve the appropriate valve timing!

last updated Apr 28, 2026

Pinstripe

Since it is used by being lightly pressed into a hole, the outer diameter precision, surface roughness, and material hardness are important!

last updated Apr 28, 2026

Pin ring

Due to being pressed into the counterpart, a micron-order outer diameter precision is required.

last updated Apr 28, 2026

Sheet plug

The drain cock is secured by a screw! When removed, the engine oil will be discharged.

last updated Apr 28, 2026