THIS IS A SEADOO 4TEC BILLET ALUMINUM OIL FILTER CAP. THIS CAP IS MADE FROM 6061 T6 ALUMINUM AND ANODIZED BLACK. FITS ALL 4 TEC MOTORS IN THE RXP, RXP-X, RXT, RXT-X, GTX, GTI, GTS, AND WAKE 155 185 215 260 300. IT REPLACES OEM SEADOO PART NUMBER 420610328. IT IS DESIGNED TO BE EASILY REMOVED BY HAND UNLIKE THE FACTORY ONE THAT IS A PAIN TO REMOVE. MADE IN THE USA