Chrysler 4142598 & 2847886 Heat Exchanger Replacement Chrysler 4142598 & 2847886 Heat Exchanger Replacement Fits LM318 & M360The tee is required for installation on the 4142598 dual pass sea water upgrade. The dual pass element increases cooling efficency. This replaces 2847886 single pass heat... MSRP: Was: Now: $1,350.00 Add to Cart