Inboard Engine Options Products Option - Digital Throttle and Shifting, Mercruiser #MercOpt-In-DTS-1 $801.25 Option - Fresh Water Cooling, Mercruiser #MercOpt-In-FWC-1 $910.00 Option - 4.7" Riser, Mercruiser #MercOpt-In-47R-1 $487.00 Option - 6" Riser, Mercruiser #MercOpt-In-6R-1 $547.00 Option - 3" Riser, Mercruiser #MercOpt-In-3R-1 $448.00 Option - 2" Riser, Mercruiser #MercOpt-In-2R-1 $393.00 Option - ECT Catalyst, Mercruiser, 3 #MercOpt-In-CAT-3 $3,360.00 Option - ECT Catalyst, Mercruiser, 1 #MercOpt-In-CAT-1 $2,176.25 Option - Air-Actuated Water Drain, Mercruiser #MercOpt-In-AAWD-1 $171.25 Option - 4" Riser, Mercruiser #MercOpt-In-4R-1 $467.00
