This cylinder head assembly fits Honda GX340 GX390 GX420 and many other Honda clone 337cc 338cc 340cc 389cc 390cc 420cc 439cc 11Hp 13Hp 14Hp 15hp 16hp engine. Replaces Honda 390 340 engine head part number 12200-ZF6-406,12200ZF6406,12200-ZF6-W00,122A0-ZE3-010, 12200ZF6W00,12210-Z5T-416, 12391-ZE2-000, 12210Z5T416.
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