NAPA, http://www.napaonline.com/images/h_img_cart.gif , sells an inline lift pump that does 10 to 14 lbs and 20 gph that is made for a GM Diesel for about $80. This sounds like it would work for the Cummins? Has anyone tried it? Part # P74001 ACDelco # EP-158 Car Quest # E8012S I think it is made by AirTex www.airtexproducts.com