Engine Parts business

We contribute to the creation of a sustainable mobility society through our manufacturing technology.

This division is engaged in precise machining of engine parts for vehicles and industrial machinery, one of our main businesses. Connecting rods are our main products, for which we hold the world's largest share in the niche market.
We are taking on the challenge of new fields for electrification vehicles with the extensive machining experience and knowhow throughout our long-term business activities.

History of Our Engine Parts Business

 
1960s
  • Transferred engine parts processing facility from a Car OEM to our main plant and initiated our own machining of cylinder blocks and cylinder heads.
  • Established Nabari Plant.
  • Dedicated our business to engine part processing.

Photo: Transferred machining line to the main plantTransferred machining line to the main plant

Photo: Established Nabari PlantEstablished Nabari Plant

Photo: Cylinder headCylinder head

Photo: Cylinder blockCylinder block
1970s
  • Implemented our own process designed line for machining cylinder blocks and cylinder heads.
  • Initiated machining of connecting rods as a new 5C engine part.

Photo: Our own process-designed machining lineOur own process-designed machining line

Photo: The first product machined through our own process-designed lineThe first product machined through our own process-designed line

Photo: Started machining connecting rodsStarted machining connecting rods
1980s
  • Established Saimyoji Plant.
  • Assigned Saimyoji Plant as our dedicated plant for connecting rods.
  • Established a joint venture in North America to expand our business.

Photo: Established Saimyoji PlantEstablished Saimyoji Plant

Photo: Opened sales office in North AmericaOpened sales office in North America
1990s
  • Implemented our own designed concept of connecting rod machining lines to increase flexibility for high-mix low-volume requirement.
  • Established P.T.Y.Indonesia to meet demand for connecting rod machining localization in Indonesia.

Photo: Established flexible lines for connecting rodsEstablished flexible lines for connecting rods

Photo: Designed/implemented high-mix low-volume machining line for connecting rodsDesigned/implemented high-mix low-volume machining line for connecting rods

Photo: Established a manufacturing plant in Indonesia Machining connecting rods on flexible linesEstablished a manufacturing plant in Indonesia Machining connecting rods on flexible lines
2000s
  • Established Yumeporisu Plant.
  • Expanded case/block related machining capacity (cylinder block/cylinder head) to handle aluminum die-casted/cast iron materials.

Photo: Established Yumeporisu PlantEstablished Yumeporisu Plant

Photo: Manufacturing on flexible linesManufacturing on flexible lines
2010s
  • Established machining plants in South Korea, Thailand, and Mexico.
  • Fulfill local procurement requirements around the world.
  • With the acceleration of power-train electrification, enhanced efforts toward machining technologies for next generation vehicles.

Photo: Established a machining plant in South KoreaEstablished a machining plant in South Korea

Photo: Established a machining plant in ThailandEstablished a machining plant in Thailand

Photo: Established a machining plant in MexicoEstablished a machining plant in Mexico

Photo: Electric hydraulic brake componentsElectric hydraulic brake components

Main customers

Aisin Takaoka Co., Ltd.,
Kubota Corporation, JATCO Ltd.,
Suzuki Motor Corporation,
Daihatsu Motor Co., Ltd.,
Toyota Motor Corporation,
Toyota Industries Corporation,
Nissan Motor Corporation,
Mitsubishi Motors Corporation,
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.,
UD Trucks Corporation
General Motors Company,
Fiat Chrysler Automobile,
Hyundai Motor Company,
Stellantis N.V.

  • * (Japanese) alphabetical order