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Re: '06 7400 DT570 Coolant Light and Engine Light
Posted to HD/Fleet Forum on 2/7/2011

David what you want to do is istall restrictor fittings in the 2 dearation lines going into the surge tank. You should have 2 black rubber hoses going into the top of the surge tank. Get these parts from your local ih dealer. Pn 3627939C1, 3523434C1. You will ... Login to read more.