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Sierra International 18-3640 Thermostat
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Vendor: Sierra
Type: Thermostats
Sku: WBCARB07TCS3BN4
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 International 18-3640 Thermostat
$33.41
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 is the model number of the thermostat? A: The model number of the thermostat is eighteen-three-six-four-zero. This model is specifically designed for certain outboard engines.
- Q: What are the dimensions of the thermostat? A: The thermostat measures zero point thirty-nine inches in length, width, and height. Its compact size makes it easy to fit in tight spaces.
- Q: What type of engines is this thermostat compatible with? A: This thermostat is designed for Mercury and Mariner outboard engines ranging from forty to sixty horsepower. It is suitable for serial numbers one C zero five two five two and up.
- Q: Is this thermostat interchangeable with other models? A: Yes, this thermostat is interchangeable with Mercury Marine part number eight M zero one one seven four one three. This compatibility ensures versatility for users.
- Q: How many thermostats are included in one package? A: One thermostat is included per package. This allows you to replace the existing thermostat easily without additional purchases.
- Q: How do I install the thermostat? A: To install the thermostat, first ensure the engine is cool and disconnect the battery. Remove the old thermostat and replace it with the new one, ensuring a secure fit.
- Q: Is this thermostat suitable for all Mercury outboard engines? A: No, this thermostat is specifically designed for Mercury and Mariner engines within the forty to sixty horsepower range. Always check part numbers for proper fit.
- Q: What should I check before installing the thermostat? A: You should check the part numbers to ensure proper fit. It's essential to confirm compatibility with your specific engine model.
- Q: What is the best way to care for this thermostat? A: To care for the thermostat, ensure it is installed correctly and monitor engine performance regularly. Avoid overheating, as it can damage the thermostat.
- Q: Can this thermostat be used in saltwater conditions? A: Yes, this thermostat can be used in saltwater conditions, but it's important to perform regular maintenance to prevent corrosion. Rinse with fresh water after use.
- Q: What happens if the thermostat arrives damaged? A: If the thermostat arrives damaged, you should contact the seller immediately for a replacement or refund. Most sellers have a return policy for defective products.
- Q: Is there a warranty for the thermostat? A: Yes, Sierra products typically come with a warranty that covers manufacturing defects. Be sure to check the warranty details provided with your purchase.
- Q: What should I do if the thermostat does not fit? A: If the thermostat does not fit, you should verify the part number and compatibility with your engine. If it’s incorrect, contact the seller for assistance.
- Q: How can I ensure the thermostat operates effectively? A: To ensure effective operation, regularly check for any signs of leaks and monitor engine temperature. Replace the thermostat if it shows signs of malfunction.
- Q: Is this thermostat environmentally safe? A: Yes, this thermostat is designed to meet or exceed the original equipment standards, ensuring it is safe for the environment when used as intended.