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Holley 2300 Marine Carburettor Needle and Seat plus nut and screw HNS690
3/8” 32 tpi thread
0.101" orifice Single O-ring type
This is the long needle & seat that extends to the outside top of the bowl Suits these 2300 Marine Models:
Suits the following list numbers:
R-803131A
R-80313A
R-803161A
R-80316A
R-80321A
R-80321A-1A
R-80385A