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Sierra International 18 3535 Marine Thermostat Review

2

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Very good

Revainrating 4.5 out of 5  
Rating 
4.3
🌡️ Engine Cooling & Climate Control, 🛠️ Replacement Parts

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Description of Sierra International 18 3535 Marine Thermostat

Designed for use in Mercury marine applications. Interchangeable with Mercury Marine 885599003, 885599004, 8855991, and 8M0057307. Temperature Rating: 130°F (54°C). Each Sierra product meets or exceeds the original equipment part it replaces.

Reviews

Global ratings 2
  • 5
    1
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
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Type of review

Revainrating 4 out of 5

Fantastic Thermostat for Marine Vehicles

When I tried this product on my automotive boat engine, it worked flawlessly! The thermostat helped maintain the ideal temperature for efficient engine operation. The installation process was easy and straightforward..

Pros
  • Reliable and efficient temperature control for marine vehicles.
Cons
  • It's a bit pricier compared to other standard thermostats.

Revainrating 5 out of 5

Perfect fit for my 1999 225 efi Mariner Optimax

When buying this thermostat, be careful and search carefully. Some websites have a parts chart for parts to select from and you may find this thermostat listed as unavailable. That's not true, the manufacturer upgraded the original from 120 degrees to 130 degrees, i.e. Sierra 18-3535. The OEM part will cost you double what you pay for that part.

Pros
  • Lots of positive vibes
Cons
  • I have no negative feelings everything is fine