Harley Davidson Linkert Carburetor W/Air Cleaner Cover & Insert.Model M-18.Original OEM.Fits 45 Servi-Car Models 1949-58.Fits 45 W Models 1949-52.I see 2-588 Stamped on the side,(see pics).I feel it`s a Good One.It`s used of coarse so please look at all pics so you know condition,(see all pics).This one has not been gone thru.It came off a running bike many years back and should be gone thru because it sat for so long,(just being honest).All threads look good.The cover is Original but I`m not sure if the mesh basket is.You can decide that,(see pics).The cover has some scratches,scrapes,dings,nicks,etc.I`m sure it will need some adjusting for your model bike.I`m also sure the winning bidder will be happy with this Original.I see a lot of Patina.As always,Please look at all pics so you know condition,(see all pics).Good luck bidding.Thanks for looking.