Tractor Air Filter Cross Reference RK859AB is designed for tractors, heavy machinery, agricultural vehicles, trucks, and buses. It effectively removes dust and dirt from the air, ensuring clean air enters the engine. Our air filters are made of high-quality materials. We have a wide range of models and can produce alternative filters for any air filter type with durable and high-quality standards. We guarantee extended lifespan and improved fuel efficiency for our air filters. For wholesale or custom orders, please contact us.