04318399 Assembly, Pre-CleanerOne New Aftermarket Replacement Pre Cleaner Assembly for Deutz, Ford New Holland, John Deere, Massey Ferguson, and Allis Chalmers Tractors This aftermarket replacement pre cleaner assembly mounts at the top of the air intake stack, capturing large airborne debris and particles before they reach the primary air filter. By removing dust, chaff, and other coarse contaminants at the first stage, the pre cleaner significantly extends air filter service