ekulrenlig Posted March 19, 2007 Share Posted March 19, 2007 What engine parts are compatable between the 2.5L and 4.0L engine? Water pump? Alternator? Starter? Coil? Belts? Pulleys? Radiator? Air intake? What else? Link to comment Share on other sites More sharing options...
jeepthing07 Posted March 20, 2007 Share Posted March 20, 2007 As far as I know the water pumps are the same (unless the 2.5 ever had V-belts then its not RR), coil is the same, rocker arms are the same I think. I'm fairly sure the timeing cover is the same The starter is different so is the radiator... The MPFI alternators are the same (some 4.0's had a 117 amp). I think the Renix alternators might be different. Link to comment Share on other sites More sharing options...
Eagle Posted March 20, 2007 Share Posted March 20, 2007 Early 2.5Ls w/o air conditioning used vee belts and conventional rotation for the water pump. The ones with a/c used the same water pump as the 4.0L ("reverse" rotation). Link to comment Share on other sites More sharing options...
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