In original packaging item, may require some assembly. See link for more details:

for Wix 46637 Fleet-guard AH1141 Napa 6637 Bald-win PA2818 Fram CA6818 Donald-son B085011 Cummins 3912020

https://www.amazon.com/Toolyuan-B085011-Baldwin-Fleetguard-Donaldson/dp/B09PDL679D/ref=sr_1_1_sspa