Mercury 804540 Thermostat Replacement
Replaces Mercury part 804540
Suits Mercury engines:
2, 2.5, 3.5 HP Carb 4 Stroke models (SN: 1C453840 & up)
4, 5, 6 HP Carb 4 Stroke models (SN: 0R000001-Up)
25HP 2 Stroke International Model (SN: 0N018456 THRU 0N055504)
30HP 2 Stroke International Model (SN: 0N001875 THRU 0N055504)
This is an aftermarket outboard part.
