SOLAS 12 vein stainless YAMAHA 144mm stator vein section. Greatly improves jet pump hook up, and efficiency. Fits Yamaha super jet, Blaster 1, etc. Includes 12 vein stainless pump, pump cone, and dual brass coolant fittings. Must use a large hub impeller, Skat, Solas, or Impro's Hooker. **PLEASE NOTE** in the past we have had troubles with bearing clearance / fitment in the SOLAS pumps. Here at WATCON we personally check clearance each pump BEFORE it is put on the shelf for sale. All pumps are turned on a lathe to our specs to reduce bearing press, and any bearing fitment issues. You can buy with confidance here.