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

Made with pride by Lenco in Long island

NA001406  Perkins Heat exchanger

Volvo Penta Oil Cooler Kit #21150947 for engine HS1

5"-Diameter x 21"-Long

Onan 130-1394 CN Heat Exchanger replacement made with pride by Lenco in Long Island

Please consult the drawing

CAT 134-3741

CM2880 F105

in Long Island

Westerbeke 36902CN

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Mercruiser 89690T