Hi all,<br/>Original 1996 made in england water pump leaking from weep hole. Picked up this new cummins water pump from SLC sales/service. <br/>$189 plus 3 new cap bolts. Should I be concerned withthe new design with plastic impeller,instead of metal? <br/>The new weep hole is behind flange ,and looks like new body design. Original had 151k miles. <br/>Comments please. Thanks