OSEN manufacture and supply high quality engine parts such as cylinder head and other related diesel engine parts.  We also develop new materials for upgrading the performance of engine parts.  

We are quality supplier of New Replacement Caterpillar Parts and Replacement CUMMINS Parts, equipment and engines.  At OSEN, we not only offer premium quality cylinder heads, but also supply other related diesel engine parts such as turbo charger, valve riser cover, thermostat housing, etc.

We have specialized knowledge and training with cylinder head. At OSEN, our focus is to provide you with great quality replacement Caterpillar and CUMMINS parts at a great value. Our new replacement parts undergo strict inspection procedures to ensure our products meets OES spec before shipping out of our workshop.

We also understand the industry and know that time is money. That is why we respect market and quality. Our professional team not only produces quality cylinder heads but also acts fast to solve customer's issue a.s.a.p.

Our products and services cover a wide range of areas that include both the on-highway and off-highway industries

Over the years, with our professional knowledge, we have reached out and serviced many companies worldwide.