The Sea-Doo 300 and 325 share part categories, not part numbers. Rear exhaust, intercooler tubing, intake filter, silicone hose and clamps are offered for both.
An Intiracing part number is a lookup key, not a decoder. RS, RY, WR, RK, SEADOO-xx and numeric families are separated by model and year, so the listing title decides.
A generic aluminium tank is chosen by body size, while the dual aluminium coolant and intercooler tank is listed for the Polaris RZR Turbo and Turbo S from 2016 on, with its ports and mounts set.
A slip-on needs a link pipe that matches its inlet and its hanger, while the Can-Am Ryker titanium race muffler and the 2019-2024 stainless version are listed for the 600 and 900.
The Intiracing outer shell housing is laid up in prepreg dry carbon and supplied as a bare carbon part. A factory shell arrives painted, so the difference is the material and the finish a buyer has to plan for.
A generic catch can is a can with a bracket, while the Sea-Doo 300 16-17 breather tank kit and the titanium RS19050-BCC are listed by model, year and material.
A generic waterbox is sold by inlet size, while RY16041 is written for the Yamaha 1.8L SVHO, SHO and HO from 2008 to 2022, with the body and mounts set to that hull.