The jet pump housing 267000856 on Rotax powered craft running the 900ACE engine can sustain damage on the stator veins due to debris ingress through the drive system.
Here at JetSkiHub we supply genuine Rotax parts across the Globe.
When ordering a pump housing please bear in mind the item is the casings only and not an assembly, we can can of course offer a complete unit which we would assemble at our workshops in Poole UK.