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Sierra 18-3647D Marine Thermostat Kit
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Vendor: Sierra
Type: Thermostats
Sku: WBCARB000N9MICG
Available: Available
Sold by Carkart, an authorized reseller.
Returns accepted within 30 days | support@carkart.com
Shipping Information
- Free Standard Shipping — United States only
- Processing Time: 1–3 business days
- Estimated Delivery: 3–5 business days after dispatch
- Double-boxed, fully insured & discreetly packaged
- Tracking number sent via email once dispatched
- Orders over $250 require signature upon delivery. Taxes calculated at checkout.
Returns & Refund
Returns accepted within 30 days of delivery.
Damaged or Defective Item
Free return shipping + replacement or full refund
Wrong Item Received
Free return shipping + replacement or full refund
Change of Mind
Return shipping at customer's expense · 25% restocking fee applies
All returns require a Return Authorization (RA) number before sending.
View Full Return & Refund Policy
⚠️ 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.
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Sierra 18-3647D Marine Thermostat Kit
$51.24
FAQs
Have a question ? We are here to help.
Is the shipping free?
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 materials is the Sierra 18-3647D Marine Thermostat Kit made of? A: The kit is made of metal, ensuring durability and reliable performance in marine environments.
- Q: What are the dimensions of the Sierra 18-3647D Marine Thermostat Kit? A: The dimensions are six point three inches in length, three point nine inches in width, and one point seven inches in height.
- Q: Is this thermostat kit compatible with specific engine models? A: Yes, it is compatible with Mercruiser engines and fits standard cooling systems requiring a one hundred sixty degree thermostat.
- Q: How do I install the Sierra 18-3647D Marine Thermostat Kit? A: To install, remove the old thermostat, clean the housing, and fit the new thermostat according to the manufacturer's instructions.
- Q: Is this thermostat suitable for older GM engines? A: No, this thermostat kit is designed for GM engines from nineteen eighty-seven and newer.
- Q: What type of cooling system does this thermostat kit work with? A: It works with standard cooling systems, specifically those needing a one hundred sixty degree thermostat.
- Q: What is the best way to maintain the Sierra 18-3647D Marine Thermostat Kit? A: Regularly check for leaks and ensure that the cooling system is free of debris to maintain optimal performance.
- Q: Can this thermostat be used in saltwater conditions? A: Yes, the metal construction makes it suitable for use in both freshwater and saltwater environments.
- Q: How should I store the Sierra 18-3647D Marine Thermostat Kit? A: Store in a cool, dry place away from direct sunlight to prevent any degradation of materials.
- Q: What should I do if the thermostat kit arrives damaged? A: Contact customer support immediately to report the damage and initiate a return or replacement process.
- Q: Is there a warranty for the Sierra 18-3647D Marine Thermostat Kit? A: Yes, the product typically comes with a manufacturer's warranty, which covers defects in materials and workmanship.
- Q: How do I know if this thermostat is the right choice for my engine? A: Check your engine specifications; this kit fits Mercruiser engines that require a one hundred sixty degree thermostat.
- Q: What if I install the thermostat incorrectly? A: If installed incorrectly, it may cause overheating or cooling inefficiency, so always follow the installation guide carefully.
- Q: Can I replace the thermostat myself? A: Yes, if you have basic mechanical skills and tools, you can replace the thermostat yourself with proper instructions.
- Q: What is the temperature rating of this thermostat? A: The temperature rating of the Sierra 18-3647D is one hundred sixty degrees Fahrenheit.
- Q: Does this thermostat kit include all necessary components for installation? A: Yes, the kit includes all essential components required for a complete thermostat replacement.