Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
- No EU import duties. - Ships within 3-5 business days. (USA) - Ships with 8-12 business days. (International)
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
Sierra'S 18-3500 Thermostat Features A 140 Temperature Rating. It Is Designed For Use With Johnson/Evinrude 3 Cylinder (1992 & Up) And 90 Looper (1990-1992) Applications. Includes One Thermostat Per Package. It Is Interchangeable With Glm 13170 And Johnson/Evinrude Outboard 394409 And 434137. Each Sierra Product Meets Or Exceeds The Original Equipment Part It Replaces.
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
Frequently Asked Questions
Q: What is the temperature rating of the Sierra International 18-3500 Thermostat?A: The Sierra International 18-3500 Thermostat has a temperature rating of 140°, making it suitable for various marine applications.
Q: Which outboard engines are compatible with this thermostat?A: This thermostat is designed for use with Johnson/Evinrude 3 Cylinder models from 1992 and up, as well as 90° Looper models from 1990 to 1992.
Q: Is the Sierra 18-3500 Thermostat interchangeable with other models?A: Yes, it is interchangeable with GLM 13170 and Johnson/Evinrude Outboard models 394409 and 434137.
Q: What materials is the thermostat made of?A: The Sierra 18-3500 Thermostat is made of durable metal, ensuring reliability and longevity in marine environments.
Q: How many thermostats are included in one package?A: Each package includes one thermostat, making it convenient for individual replacements.
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