Parts Availablility

Genuine component parts are available from Fluid Mechanics, LLC. to support Duap fuel injection pumps and injectors.

DUAP engine products
injector nozzles

Injector Nozzles

engine pump parts

Pump Elements

injection pumps for diesel engines

Injection Pumps

diesel fuel engine injectors

Complete Injectors

Service Availability

Rebuilding, testing and calibration of fuel injection pumps is available from Fluid Mechanics, LLC. Testing and calibration results are compared to "master pumps" to assure pump performance.

Complete fuel injector rebuild and testing is also available.

DUAP fuel injection products

Quality with a History


DUAP AG is a privately owned company with its headquarters based at Hezogenbuchsee in Switzerland.

Since its establishment in 1943, DUAP has produced fuel injection nozzles and precision parts for diesel engines. The company has continuously developed its capabilities. Over the years the company has expanded its range of competencies to include complete fuel injection systems for power outputs covering the automotive sector as well as large diesel units for ships' engines and stationary power generation. The company is now established as one of the best known and most competent partners in fuel injection technology.

Our many years of experience combined with our ultra modern production facilities and the innovative spirit of our specialists stand as guarantor for our high quality standards.

Daily contact with our customers across the world together with our close co-operation with the leading engine builders confirm this, whilst at the same time providing us with a new challenge each day.


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760 Moore Road, Avon Lake, Ohio 44012 Phone +1 440 961-1120
215 S.W. 32nd Street Ft. Lauderdale, Florida 33315 Phone +1 954 525-1755