3914642 CN CUMMINS HEAT EXCHANGER | LE: 3914642CN | 6BT, 6BTA, CUPRO NICKELLE 3914642 CN replacement Cummins Heat Exchanger. For Models 6BT later versions 250 HP and Model 6BTA, 300 HP. Made with pride in the USA by LENCO. Cupro nickel for a longer lasting more durable unit, superior to standard copper made units. The Cupro nickel tube bundle is brazed to the baffles and headers for a more durable commercial grade unit. Replaces older Cummins part numbers 3914642, 3866719, 4019958. Replaces Sen Dure 9778 1 7. Call us at
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