Harley Davidson Linkert Carburetor,M-74.Original OEM.Fits Panhead F,FL Models Early 1951.I see 2-408 Stamped on the side,(see pics).I looked real close and could not see a "B" after the M-74.Now here is a Good One up for auction.Not a bunch of aftermarket parts in this one.It`s used of coarse so please look at all pics so you know condition,(see all pics).It could use a good cleaning,then back on the road again.I`m sure the winning bidder will be happy.I see a lot of Patina.Free USA Shipping.International Rates Still Apply.Good luck bidding.Thanks for looking.