4020101 CUMMINS HEAT EXCHANGER | LE: 4020101CN | CUPRO NICKELLE 4020101CN replacement Cummins Heat Exchanger. For late model 5. 9 liter 6 cylinder engines. Made with pride in the USA, cupro nickel for a longer lasting more durable unit, The Cupro nickel tube bundle is brazed to the baffles and headers for a more durable commercial grade unit. Also available in an economy copper version.
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