18-4307 Sierra Powerhead Gasket Set Johnson Evinrude 20-35HP Manufacturer: Sierra Part Number: 18-4307 Cross References: SIE 4307, 18-4307, 0418-4307, 04184307, SIE18-4307 Replaces: OMC 433941, 392567, 392615, Mallory 9-64114 Fits: 8Jet (95-98), 20HP (81-99), 25HP (79-03, 2 Cyl only), 28HP (86-96), 30HP (84-03, 2 Cyl only), 35HP (79-88) (verify fitment using your model or serial number)
