Thermostats

Indmar 160 Degree Thermostat Indmar 160 degree thermostat for GM based 5.0 and 5.7 engines. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  

Indmar 140 Degree Thermostat Indmar 140-degree thermostat. Use the boat part look up below to ensure you are purchasing the correct part for your boat.  

Indmar 160 Degree Thermostat LT1 Indmar 160 degree thermostat for Corvette LT-1 engines. This thermostat features two small holes that are drilled through to allow air to pass through the thermostat. This is the thermostat which is located in the LT-1...

Ilmor 6.0L MPI Thermostat Kit | KT1438 Have a boat engine that doesn’t seem to heat up? A lot of times, that problem is caused by a worn-out thermostat. Replace those failing thermostats and seals with this kit specifically designed to fit your...

Ilmor GDI Thermostat | PV07759 Have a boat engine that doesn’t seem to heat up? A lot of times, that problem is caused by a worn-out thermostat. Replace those failing thermostats this thermostat specifically designed to fit your Ilmor engine.  

Ilmor 190 Degree Thermostat-4mm Hole | PE02006 Have a boat engine that doesn’t seem to heat up? A lot of times, that problem is caused by a worn-out thermostat. Replace those failing thermostats this thermostat specifically designed to fit your Ilmor...

Ilmor Thermostat Housing O-Ring The Ilmor remote thermostat housing mounting o-ring offers application-specific materials to give you a sealing solution with the performance and durability you can trust. This Thermostat Housing O-Ring is used with both...

Indmar LT1 Thermostat Gasket This MasterCraft Indmar LT-1 Corvette thermostat gasket was an engine option in MasterCraft boats from 1993 to 1999. It is used to seal the 160 degree drilled thermostat. Use the boat part look up below to ensure you are...

Ilmor Thermostat Flat Rubber Gasket | 500-0044 This Ilmor flat rubber thermostat gasket consists of quality materials to give you a sealing solution with performance and reliability you can trust.  

Indmar Thermostat Gasket This thermostat gasket is commonly used on many late 80's to early 90's Indmar engines. This gasket measures 3 3/8" across (at the widest point) and 4 1/4" long. This part is commonly found in MasterCraft, Supra, Moomba and Malbu...

Indmar Thermostat Gasket This thermostat gasket is commonly used on Indmar 350 block engines including the RTP-1, MCX, Assault and many others. This is a 3 bolt gasket used on the bottom half of the thermostat housing where it meets the intake manifold...

Indmar Thermostat Gasket This is commonly used on Indmar 350 Thermostat Gasket for GM 5.0 and 5.7 small block engines including the RTP-1, MCX, Assault, Monsoon, and many others. This is a 2 bolt gasket used on the top half of the thermostat housing,...

PCM Thermostat Gasket This thermostat gasket was commonly found on PCM engines. Use the boat part look up below to ensure you are purchasing the correct part for your boat.