A-1693129M1-AI Assembly, Pre-CleanerOne New Aftermarket Replacement Air Pre Cleaner Assembly for Massey Ferguson (MF) Tractors This air pre cleaner assembly mounts above the main air cleaner and uses centrifugal action to remove large dust and debris particles before air enters the primary filter, extending filter life and protecting the engine in heavy duty field conditions. It fits a 3 inch intake pipe and features an approximately 7 inch bowl. Compatible with Massey Ferguson 300,