About.

Building for Success on a Foundation of Quality and Continually Improving

Founded in 1976 as a warehousing, distribution, and quality inspection center for local General Motors divisions, Harco Manufacturing Group, LLC has grown into a global Automotive Tier I and Tier II supplier of a variety of products including Hydraulic Brake Hose Assemblies, Under-hood Brake Hose Assemblies, Hydraulic Brake Hose End Fittings, and Transmission Oil Cooler Hose. Our number one resource is our employees: their commitment to safety, quality, and on-time delivery make us second to none.

As we grew in the global market we soon developed a partnership with Qingdao Sunsong and in June of 2015 Harco became a Wholly Owned Subsidiary of Qingdao Sunsong Co., LTD located in Qingdao China. Sunsong is a global leader in automotive fluid transfer products, and the combined resources of Harco and Sunsong will bring many opportunities for us to work together to develop new products and take advantage of our operational synergies to further expand our global presence.


  • Automotive OEM
  • Automotive Aftermarket
  • OEM Product
  • Capacity: Over 100,000 Assemblies per Day
  • Prototype
  • On Vehicle Routing & Articulation Studies of Brake Hose Assemblies
  • Brake Hose Assembly Design and Development
  • Full Onsite Testing and Validation Lab
  • ISO/TS 16949:2009
  • FMVSS 106
  • CMVSS 106
  • SAE J1401
  • GMW3056
  • CCC (China Compulsory Certification)
  • MS-EA75
1976 - Established as Harco Industries.
1996 - Harco Brake Systems formed to build Brake Hose Assemblies for General Motors with resulting cost and quality improvements.
2007 - Consolidated into Harco Manufacturing Group and purchased Brake Hose product line from Delphi.
2015 - Qingdao Sunsong, LTD Partnership with Harco.