I am trying to rebuild an old Meyer pump, but Meye...

I am trying to rebuild an old Meyer pump, but Meyer is selling defective parts. The company that sold me the part blamed the error on Meyer and they could not get a reply from Meyer, so I called them myself a week ago, they said they would get back to me concerning the defective part but still haven't. Now I am stuck with a basket of parts that can't be assembled unless I repurchase the correct part for around $75. I looked up snowplow forums on the internet and discovered that most people agree that Meyer products are overpriced and inferior to Boss and Western snowplows.