6 Pipe Thermostat Housing Kit for Mercruiser, Replaces 87290A23, 16413A3, 16413A9

6 Pipe Thermostat Housing for Small Block V6 & V8

Used on 4.3L, 5.0L, 5.7L, 6.2L Engines

Replaces Mercruiser 87290A23

Also replaces old style housings 16413A3, 16413A9