Quicksilver 991551 Replacement 160 Degree F Thermostat Select Mercuiser V6 & V8 engines NOINVENTORYSHOW so you can be sure

so you can be sure you’re trolling at the right speed for the lure you’re using or in wake-controlled areas

4L V6 FourStroke outboards (serial number 2B529482 and higher) in one convenient package

The MGL Spool III reduces start-up inertia for smoother

All HELIX Series except non-CHIRP DI models

Works on round tube up to 1 ¾” and square tubes up 1 ½” diameter

Quicksilver 991551 Replacement 160 Degree F Thermostat Select Mercuiser V6 & V8 engines NOINVENTORYSHOW so you can be sureThermostat 991551 is a 160F replacement for newer MerCruiser V6 and V8 engines equipped with closed cooling systems. Produced to meet Mercury Marine original equipment manufacturer specifications, this thermostat ensures your engine operates at the ideal temperature for maximum power and efficiency. Fits 1998 and newer MerCruiser V6 and V8 engines (GM based) Specifically for engines using closed cooling systems 160F operating temperature Easy to