Trusted by companies in every industry.

We take pride in our long term partnerships built on integrity and care.

K.O.K. has produced essential parts for some of the most impressive manufacturers in the world. From supercars to semiconductors, motorcycles to medical devices, K.O.K.’s products keep people safe and comfortable in every corner of the world.

See all markets K.O.K. serves.
Airplane at fly on the sky with clouds

Aerospace

Possible applications for KOK parts in the aerospace market include custom sealing parts developed to meet the meticulous demands of the industry. Parts include O-rings, Radial Shaft Seals and Gaskets produced with high technology materials to meet aerospace requirements.

More Markets
Modern Electric car rides through tunnel with warm yellow light 3d rendering

Automotive

The portfolio of KOK parts for the automotive industry (including passenger cars & light trucks) includes the highest quality in sealing parts, vibration dampening, and functional rubber & rubber-bonded components such as radial shaft seals, valve stem seals, air flow tubes, anti-vibration parts, O-rings, CV joints, boots & bellows, tie rods and much more.

The areas in which KOK components are used include:

  • Engine
  • Drive Shaft Axle
  • Power Steering
  • Brake
  • Chassis
  • Suspension
  • Fuel Pump
More Markets
Train rides at high speed in winter around the snowy city industrial landscape

Rail Transport

KOK parts that are used in trains include a range of oil seals, developed to meet the rigorous demands of the rail transport industry. In 2006, KOK developed an assembled seal now used on each wheel of trains in Italy, France and Korea.

More Markets

+88000+

parts developed

1000++

in-house testing equipment

5000++

happy customers

Build with the best quality you can find.

Experts in manufacturing sealing & vibration control parts.

K.O.K. parts make your products more comfortable, more efficient, and safer. With decades of research and development into stronger, longer lasting materials and dedication to innovative technology, you won’t find better quality products anywhere else than right here in Taiwan.

About us

The manufacturer for manufacturers who care about quality.

Decades-long relationships with companies around the world. Custom products for OEMs since 1963. A company built on strong values. K.O.K. was the first company in Taiwan to develop the oil seal, and continues to lead today with innovation and integrity.

Learn more about K.O.K. International

High quality people make high quality products.

Culture has always been important at K.O.K. We know that a great culture stems from holding high standards and encouraging everyone to be the best they can be. 

Learn more about our culture of continuous improvement.

Talk to us about your project.

We love working with you to design & manufacture custom parts.