OEM Indmar 49-5180 RE-PLUMB KIT FOR 5.7 EXT CAT
This kit changes the water flow through the 5.7L ETX CAT exhaust manifolds (re-routes the cooling system).
Fits V-Drive and inline applications.
Note that the Re-plumb kit must be used when replacing manifolds that have not used the Re-plumb kit.
- Kit for replumbing cooling system for engines with EXT Cat exhaust manifolds
- Used on engines with serial no. 172317 and lower
This is how it needs plumed if you use the original thermostat housing.
If you use the 2-piece housing its the same except the middle 2 ports on the diagram aren't there so those connections won't exist.
Also, in the replumb kit the 1" hose from the top of the manifolds to the exhaust dumps is long enough to go around the front of the manifolds and under them back to the dumps.