Rules of cooperation

The satisfaction of the customers is our top priority and the basis of everything we do. Our cooperation is based on long-term partner relations and business ethics and responsibility, which are permanently reflected by the mission and values of our company. We place great emphasis on our commitments, which is why every contract contains suitable provisions to guarantee the receipt of the goods or provision of the service under the previously defined terms.

Read our General Terms of Sale and General Terms of Orders.

“Quality is when the customer returns and the product does not”.
That is why our top priority is to maintain the highest possible quality of our products. We only use proven materials from reputable manufacturers and innovative production technologies based on the requirements of international standard ISO 9001. – [INCLUDE A LINK TO THE CERTIFICATE: Quality certificate: Certificate PL/18.00111/QMS ISO 9001:2015]

Quality can be achieved through precise production and cooperation between the individual departments. WUZETEM – Top Precision is the main motto we identify with and follow. All of these aspects are the reason WUZETEM products are reliable and conform to the most stringent requirements.

We guarantee that our products are free from defects caused by materials or poor workmanship that would prevent them from incorrect operation under normal operating conditions with standard maintenance.

Consequently, we undertake to replace our products with defect-free items or repair them at our factory within one year from their installation in the engine, but not later than 18 months from the date of sale from the factory.

This does not apply to damage caused by incorrect operation and maintenance, including, in particular, the following:


  • damage to the conical face caused by impurities introduced during installation or originating from the fuel,
  • seizure of the needle due to the deformation of the opening in the injector body caused by the over-tightening of the injector nut and impurities,
  • failure to replace the thermal seals in the cylinder head (for pintle nozzles),
  • repairs performed incorrectly, contrary to the rules.


  • damage to the surface at the face of the plunger (compaction) due to incorrect maintenance,
  • wear of plunger and cylinder surfaces located opposite fuel orifices due to impurities in the fuel,
  • plunger seizure caused by over-tightening of the connection or impurities in the fuel,
  • repairs performed incorrectly, contrary to the rules.


  • assembly damage to parts, particularly threaded parts,
  • replaced parts and assemblies, misadjustment, repairs performed incorrectly, contrary to the rules,
  • damage described in the item concerning nozzles caused by impurities.

Injection and feeding pumps

  • damage to internal parts,
  • misadjustment, repairs performed incorrectly, contrary to the rules,
  • damage due to impurities in the fuel (operation with an ineffective filter).


Production or material defects of the purchased goods entitle you to submit a complaint. In order for your complaint to be quickly considered, fill out the form we have prepared and send it to:

Complaint forms can be downloaded here:

logo wuzetem

WUZETEM is a global supplier of steel precision components for vehicles, machinery and equipment. It offers comprehensive solutions in the area of precision mechanics for manufacturers and distributors from the automotive industry, agricultural business, military sector and heavy industry. The company specialises in the production of high-quality nozzles, injectors and plungers. It has modern machinery and equipment, an R&D laboratory and an experienced team of engineers. The company has been in business continuously for more than 70 years, and its products can be found in 33 countries in the world.


ul. Piastowska 67
05-850 Jawczyce

NIP: 525-000-08-60
REGON: 012078978

tel.: +48 22 841 32 01
fax: +48 22 841 85 68