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New genuine Keihin air cleaner adapter O-ring for FCR35, FCR37, FCR39 and FCR41 carburetors. This formed seal is recommended for off-road and ram-air adapter applications.
Order number 021-439. Shown as Ref 130 in the general FCR exploded view.
General FCR exploded-view diagram: Ref 130 identifies this O-ring. Diagram provided for identification; other illustrated parts are not included.




