Thermostat Housing Compact Design Low Profile - IN STOCK!
Used on Indmar and many other GM Chevrolet V-6 4.3-Liter and V-8 Small Block 5.0 and 5.7-Liter engines that have dual cooling circulating pump and sea water pump
Complete Upper Thermostat Housing
Complete Lower Thermostat Housing
160 Degree Thermostat
Water Inlet is 1-1/4"
(2) Water Outlets 1" and standard size circulating hose outlet
Use on RAW Water engines only!
If you need the gaskets for your lower thermostat housing to the intake - CLICK HERE for 55-1004
Thermostat Housing Compact Design low profile. Can be used on Indmar and many other GM Chevrolet V-6 4.3-Liter and V-8 Small Block 5.0 and 5.7-Liter engines that have dual cooling circulating pump and sea water pump.
Use on raw water cooling engines only, comes complete upper and lower housings with a 160 thermostat.
Water inlet 1-1/4" and (2) water outlets 1" and Standard size Circulating pump hose outlet.
IF YOU ARE REPLACING YOUR OLD, NLA THERMOSTAT HOUSING, PLEASE READ THIS BELOW:
Some of the older applications have 2 extra hose barbs on the thermostat housing. Some of those housings have become No Longer Available, and you will need to use this 531067S with 2 less hose barbs.
The extra hose connections on the old style housings went to the intake manifold. 1/2 inch NPT. When you use this 53-1067S in these situations, you will need 2 of the 60-5034 plugs for the intake.
Just remove the extra 2 hoses between the intake manifold and the old thermostat housing, and use these 2 plugs.
The 2 plugs are needed for the intake manifold when 2 hoses are removed that went between the intake and the old housing.