The Donaldson H001251 pre-cleaner is a genuine OEM component designed to extend engine air filter life by removing larger dust and debris particles before they reach the main air filter. This plastic pre-cleaner features a 51mm (2 inch) inlet connection diameter and a 127mm (5 inch) body diameter. It is rated for an airflow capacity of up to 1.4 m³/min (50 CFM), making it suitable for various agricultural, construction, and industrial machinery applications. Its compact design, with an overall height of 127mm, ensures efficient pre-filtration.