12391-ZE2-020 (475-450) x 2 Honda Valve Cover Gaskets Replacement for GX610, GX620, GX670, GXV610 Valve cover gasket replacements for Honda 12391-ZE2-020 (2 each) Fits Honda engines GX240, GX240K1, GX240R1, GX340R2, GX240RT1, GX240RT2, GX240U1, GX240U2, GX240UT1, GX240UT2 Fits Honda engines GX270, GX270R, GX270RT, GX270RT2, GX270T, GX270U, GX270U2, GX270UH, GX270UT, GX270UT2 Fits Honda engines GX340, GX340K1, GX340R1, GX340R2, GX340RT1, GX340RT2, GX340U1, GX340U2, GX340UT1, GX340UT2 Fits Honda engines GX390K1, GX390K2, GX390R1, GX390R2, GX390RT1, GX390RT2, GX390T1, GX390T2, GX390U1, GX390U2, GX390UH1, GX390UT1, and GX390UT2. For 1 bolt type valve covers on Honda engines: GX610K1, GX610R1, GX610U1, GX620K1, GX620R1, GX620U1, GX670, GX670U, GX670R, GX670U, GXV610K1, GXV610R1, GXV610U1, GXV620K1, GXV620R1, GXV620U1, GXV670, GCV670R, and GXV670U. Replaces Honda gaskets 12391-ZE2-000, 12391-ZE2-010, 12391-ZE2-020.