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Pump Vibration
improved towing power
Manufactured from corrosion-resistant marine-grade aluminum
Other Yamaha Watercraft Equipped with 144mm Pumps
helping maximize both low-end acceleration and top-speed performance by targeting the ideal RPM range for your engine modifications
Yamaha 155mm Jet Pump Housing (63M) (SKU: 003-505) KH-IG-B Pump VibrationYamaha 155mm Jet Pump Housing (63M) WSM 003 505 The WSM 003 505 Yamaha 155mm Jet Pump Housing is a premium aftermarket replacement designed for Yamaha personal watercraft equipped with the 63M pump system. Manufactured from durable marine grade aluminum, this housing is a direct replacement for the OEM Yamaha pump housing while offering the added advantage of a replaceable plastic wear ring for easier maintenance and lower long term ownership costs.
