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  1. #1

    Replacing impeller on an 2003 sportster 4 tec

    I just pulled out the jet pump on my 03 sportster. I'm about to change the impeller and I looked at the pump and a few of the veins are missing little pieces on the output side. It's just cheap plastic. Should I replace the jet pump or will it make a difference? Are they all plastic? I'm installing a solas 11/19 impeller. I was getting 47 mph before and the stock impeller looks beat up. Just looking for advice before I put it back together. Thanks.

  2. #2
    If you are not cavitating now you may be ok. If you do not mind the cost upgrading to an aluminum pump is well worth it. Can find used ones for $200-$250.

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