145-0614 ONAN CARBURETOR AIR DEFLECTOR the round part is 1-15/16" diameter the bolt holes are 2-1/4" on centers mounts inside many Onan air cleaner assemblies Please put me on your favorites. I will continue to list new items from time to time. I have other ONAN CARBURETORS in my STORE. Don't forget to click on SEE ALL CATEGORIES in the left hand navigation bar. Posted with Mobile 11-3-2021 IF YOU NEED TO CONTACT THE SELLER BY PHONE, PLEASE FOLLOW THESE INSTRUCTIONS: *FROM A DESKTOP COMPUTER, GO TO THE ITEM THAT YOU HAVE QUESTIONS ABOUT. *CLICK "CONTACT SELLER" LOCATED ON THE RIGHT SIDE OF THE PAGE, UNDER SELLER INFORMATION. *SELECT THE "OTHERS" OPTION. *CLICK "VIEW PHONE NUMBER".