Kayser

About Kayser Automotive Systems

Kayser Automotive Systems is one of the automotive industry's most enduring and respected suppliers of fluid management and engine components. With a history spanning more than 300 years — roots tracing back to 1709 when the Borcholt brothers founded a woolen goods factory in Germany — Kayser has evolved into a global engineering powerhouse. Since 1928, the company has remained in family ownership, and since successfully entering the automotive sector in 1960, it has never looked back.

Headquartered in Einbeck, in northern Germany, Kayser operates across 13 locations in 9 countries on 3 continents, serving virtually every major automotive OEM in America, Asia, and Europe. That global footprint is backed by a workforce of thousands of engineers and manufacturing specialists dedicated to developing and producing highly complex systems for vehicles of all drive configurations — from traditional combustion engines to next-generation powertrains.

What Kayser Makes

Kayser's core expertise lies in four interconnected disciplines: fluid management, emission control, thermal management, and emerging new technologies. In practice, this means Kayser engineers the precise, reliable components that keep a vehicle's most critical systems — fuel, coolant, vacuum, and crankcase ventilation — functioning within tight tolerances over the full life of the vehicle.

Among Kayser's most in-demand product lines are braided hoses engineered to withstand high-pressure and high-temperature environments, as well as turbocharger boost pressure valves that help regulate forced induction systems for optimal performance and emissions compliance. For fuel system integrity, Kayser's fuel tank breather hoses manage vapor control with precision, reducing evaporative emissions and supporting modern EVAP system requirements.

On the engine side, Kayser produces engine coolant pipe O-rings — small but critical sealing components that prevent coolant leaks and maintain proper thermal management — alongside engine crankcase ventilation covers that protect the PCV system and help keep oil vapor properly separated and recirculated within the engine.

Why Kayser Parts Are Trusted

What sets Kayser apart is its role as a Tier 1 OEM supplier. These are not aftermarket approximations — Kayser components are engineered to the exact specifications demanded by vehicle manufacturers, meaning they are built to fit, perform, and last as intended. The company's long tradition of family ownership brings a commitment to long-term quality over short-term compromise, and its investment in international production and R&D ensures that even the smallest components meet the most demanding regulatory and performance standards worldwide.

Whether you are maintaining a turbocharged engine, servicing a fuel vapor system, or addressing a coolant leak, Kayser Automotive Systems delivers the precision-engineered components that professionals and enthusiasts rely on.