yamaha Jet Boat Wear Rings Impeller Housings- Set of 2 good used OEM parts- Part numbers 66V-51312-00-94, 66V-51312-01-94, 66V-51312-01-00, 6CR-R1312-00-00- These fit almost all Yamaha boats with 4-stroke motors and some boats with 2-stroke motors- Also fit most Yamaha WaveRunners manufactured since 1999- New price is $181.99 each