GIEFFE (a Martek S.r.l. company) is one of the world’s leading companies specialised in the production of a wide range of valves, valve seats and valve guides for endothermic engines. The GIEFFE ranges cover the main European, US and Japanese models for the car, commercial, industrial and agricultural vehicle sectors as well as the earth-moving machinery sector. We cater for the needs of the aftermarket and the original equipment market. App specifications: - Search by application and code. - Do you know the OEM code? Enter the code in the search engine and find your valve. - Have you found the item you were looking for? You can view all technical data and relevant applications. - Check our stock availability. The actual availability in our warehouse is displayed for each item. - Stay in the know! The APP gives you real-time updates on our new products.