O-Ring, Insulator - Soft Mount Version. Thicker O-Rings for reduced high revving vibrations. Includes inner and outer stud O-Rings. Sold as a set of 12pcs, four large diameter inner o-rings and eight small diameter outer stud o-rings. One set required per pair of insulators. One pair of insulators required per carburetor. Replacement Alternative for Mikuni PHH Carburetor (MIkuni #Z70/075 and #Z70/075-R). Fits 40 PHH and 44 PHH.

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