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Water Distribution Tube - Gasket - Freeze Plug Set for 1935-1940 Plymouth - Dodge
Water Distribution Tube - Gasket - Freeze Plug Set for 1935-1940 Plymouth - Dodge
 
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Our Price: $108.00


Product Code: 310-037_F
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Recondition your 1935-1940 Plymouth or Dodge flathead-six cooling system with a new 23.25" long water-distribution tube and new water-jacket core plugs. Since the waterpump must be removed to replace the distribution tube, we've also include a new gasket. A rusted-out distribution tube is a major cause of overheating and rusted-out core plugs are a major cause of coolant leaks. Replaces MoPar p/n 637432. (NOT for Canadian long-block engines)

Chrysler Corp's L-head engines incorporated formed sheetmetal tubes to direct coolant from the output of the waterpump to each cylinder. These "water distribution tubes" were originally made of galvanized steel and of course rust-out over time which leads to engine overheating. We offer a distribution tube kit on which also includes new core (freeze) plugs. Frequently we are asked if we can supply the replacement tube and core plugs in brass. The answer is NO. Because the engine block is made of a ferrous metal (iron), everything in contact with the iron block and the coolant water should also be made of an iron-based metal. If you remember your high school chemistry class, you learned that if you immerse two dis-similar metals (iron and brass) in an electrolyte (the coolant water), you will have created a galvanic battery cell that will rapidly erode the least "noble" metal part (your engine bock). You don't want that! Making sure that any metal parts used in the cooling passages are made of a ferrous (iron-based) metal will keep the erosion to a minimum. Because of this, you probably won't find a brass water distribution tube but there are mechanics that will try to install brass core plugs into your engine's water jacket. Don't let them!