“Valve Cotters” are made using cold forging technology or CNC lathe seamless technology to control tolerance, heat treatment and surface finish.

Precision ID bore to control and secure valve stem’s contact.

Close taper angle to control retainer’s contact. The result is an excellent valve stem to secure retainer in the assembly. There is no relative motion in the assembly; this result is to redu




The material of “Valve Cotter” is Steel.


TSU YUN SEN CORPORATION.   No.5, Aly. 40, Ln. 228, Taixi S. Rd., Longjing Dist., Taichung City 43445, Taiwan (R.O.C.)
Tel:(886)4-26394807,26394811  Fax:(886)4-26392051  E-mail:alicia@tysvalveguide.com