This is Not an Original Equipment Manufacturer (OEM) Part.
Days to Ship: Ships Today
Note:If it says “Ships Today” Orders placed M-F before 4pm Eastern Time will ship the same day. Orders placed after 4pm and on weekends will ship out the next business day.
99438 Mercruiser Heat Exchanger 470-485 4" Diameter Heat Exchanger for Mercruiser 3.7L 4 Cylinder.... Read More
99438 Mercruiser Heat Exchanger 470-485 4" Diameter Heat Exchanger for Mercruiser 3.7L 4 Cylinder. Note that the 3" version of this part is available in special order. But we strongly suggest purchasing the 4" upgrade to better cool your engine. Sendure 4215-1 Osco 12-M-421 R&D RD42438-MM
Welcome to our Spring sale on select replacements for Mercruiser heat exchangers. If your heat exchanger got caught in the 2024 January freeze this sale might be just what you're looking for. A great deal with OEM-level quality. And, remember with Mr. Cool heat exchangers, the only difference you'll notice is the price.