Sierra 18-3635 Mercury Thermostat Kit for 75-115 HP & 150 EFI 4-Stroke Outboards OEM Replacement
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SIERRA

Sierra 18-3635 Mercury Thermostat Kit for 75-115 HP & 150 EFI 4-Stroke Outboards OEM Replacement

Product Code: SIE18-3635

The Sierra 18-3635 Mercury Thermostat Kit is a direct OEM replacement for select Mercury FourStroke outboard engines. Designed to maintain proper engine cooling, this kit ensures reliable performance and helps prevent overheating on the water.

Perfect for boat owners, marine technicians, and service professionals, this thermostat kit is compatible with Mercury 75-115 HP (serial numbers 1B366823-2B094995) and 150 EFI (1B905505 & up) 4-stroke engines. It offers a straightforward solution for routine maintenance or repair.

  • Direct replacement for Mercury OEM thermostat
  • Compatible with 75-115 HP (1B366823-2B094995) and 150 EFI (1B905505 & up) 4-stroke outboards
  • Restores optimal engine cooling and performance
  • Easy installation with precise fitment
  • Ideal for regular maintenance or engine repair

Choose the Sierra 18-3635 kit for dependable engine temperature control and lasting outboard protection.

  • Suggested Retail Price: $199.99