We firmly believe that the quality of JETMAN products will make customers feel that they are worth the money! Note: If you know the model and year of your jet ski then feel free to order Jetman's jet ski Impeller. If you are not sure about above, please find below application list, if your model number of your jet ski and the year it produced both appear on the list, then you can rest assured to buy. Size and model: OEM Number: SRZ-CD-15/21A 159MM Sea doo -Jet Ski Impeller. For Watercraft As Below: GTX LTD IS 255 (2009-New) GTX LTD iS 260 (2009-New) RXP-X 255 (2009-2015) RXP-X 260 (2009-2015) Important considerations: To choose your jet-ski Impeller, we kindly advise you to confirm your own jet-ski (1) brand, (2) diameter, (3) OEM number, (4) The model and year of the jet-ski match the impeller . Our store has over 400 outboard propellers of different sizes and dozens of jet ski impellers, and our products are constantly updated!