14129 Westerbeke Heat Exchanger Same as (Sendure # 1279-1) 3x11-1/2 core. (Sendure # 1279-1) 3x11-1/2 core. 11966 Westerbeke Heat Exchanger Sendure 1279-1 is an obsolete part number. It has been replaced with 14129. It is also Sendure 1380-1-5 or 1380-1-7.
14129CN Westerbeke Heat Exchanger Same as (Sendure # 1279-1) 3x11-1/2 with cupro nickel (CuNi) core. (Sendure # 1279-1) 3x11-1/2 core. 11966 Westerbeke Heat Exchanger Sendure 1279-1 is an obsolete part number. It has been replaced with 14129. It is also Sendure 1380-1-5 or 1380-1-7.