MerCruiser V8 225/228/260/898 Lower Thermostat Housing 

Lower thermostat housing.

Replaces MerCruiser 78984A1, HGE 8984 and Sierra 18-1993.

Fits these applications:

• MerCruiser V8 198, 228, 255, 260 and 898, inboard and stern drive units (log style direct replacement).
• MerCruiser V8 225, 250, 255, 270 and 280, inboard and stern drive units (log style direct replacement).

Compatible parts:

• MC-1-47737 direct replacement water cooled exhaust manifold (port side).
• MC-1-47738 direct replacement water cooled exhaust manifold (starboard side).
• MC-1-77234 direct replacement water cooled exhaust manifold (port side).
• MC-1-77235 direct replacement water cooled exhaust manifold (starboard side).
• MC-20-60426 direct replacement exhaust elbow riser (utilizes a stainless steel sleeve at the water/air mixing area).
• MC-20-72963 direct replacement exhaust elbow riser.
• MC-20-76351 direct replacement exhaust elbow riser.
• MC-20-76668 direct replacement exhaust elbow riser.
• MC-20-76771 direct replacement exhaust elbow riser.
• MC-20-61811A4 manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.
• MC-20-61851A2 manifold to riser 3" spacers (sold in pairs). Includes all mounting hardware, gaskets and drain plugs.

Manufactured by Barr Marine. Part number MC-29-78984.