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Sierra International 18-3638 Thermostat
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Vendor: Sierra
Type: Thermostats
Sku: WBCARB07TCRYJWN
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 18-3638 Thermostat
$60.00
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 are the dimensions of the Sierra International 18-3638 Thermostat? A: The Sierra International 18-3638 Thermostat measures zero point thirty-nine inches in length, width, and height. This compact size makes it easy to install in tight spaces of outboard engines.
- Q: What is the model number of this thermostat? A: The model number of this thermostat is eighteen dash three six three eight. It is specifically designed for use with certain Mercury and Mariner outboard engines.
- Q: Is this thermostat compatible with Mercury Marine parts? A: Yes, this thermostat is interchangeable with Mercury Marine part number eight zero four five four zero. This ensures versatility for users needing a replacement.
- Q: How do I install the Sierra International Thermostat? A: To install the Sierra International Thermostat, first ensure the engine is off and cool. Then, remove the old thermostat and replace it with the new one, ensuring it fits securely.
- Q: Is this thermostat suitable for my outboard engine? A: Yes, this thermostat is designed for use with Mercury/Mariner two point five HP to three point five HP and four HP to six HP outboard engines. Please check your engine’s serial number for compatibility.
- Q: What should I do if the thermostat does not fit? A: If the thermostat does not fit, verify that you have the correct model number and part numbers. If it still doesn’t fit, consider contacting customer support for assistance.
- Q: How do I care for my Sierra Thermostat? A: To care for your Sierra Thermostat, ensure it is installed properly to avoid overheating issues. Regularly check for any signs of damage or wear that may affect performance.
- Q: Is this thermostat safe to use in my outboard engine? A: Yes, this thermostat is safe to use as it meets or exceeds the original equipment specifications. Proper installation and maintenance will ensure its safe operation.
- Q: What is the warranty on the Sierra Thermostat? A: The Sierra Thermostat typically comes with a limited warranty that covers manufacturing defects. Always check with the retailer for specific warranty terms.
- Q: Can I return the thermostat if it doesn't work? A: Yes, most retailers allow returns for defective products. Make sure to check the return policy before purchasing, as it may vary by seller.
- Q: What if my thermostat arrives damaged? A: If your thermostat arrives damaged, contact the seller immediately for a replacement or refund. Document any damage with photos to facilitate the return process.
- Q: Is the Sierra Thermostat easy to install for beginners? A: Yes, the Sierra Thermostat is relatively easy to install, even for beginners. Just follow the installation instructions carefully for best results.
- Q: How does this thermostat compare to other brands? A: The Sierra Thermostat is designed to meet or exceed original equipment specifications, providing comparable quality to other leading brands in the market.
- Q: Are there any special tools required for installation? A: No special tools are typically required to install the Sierra Thermostat. Standard automotive tools should suffice for the installation process.
- Q: Can I use this thermostat in saltwater environments? A: Yes, the Sierra Thermostat is suitable for use in saltwater environments when installed properly and maintained regularly to prevent corrosion.
- Q: Does this thermostat require any specific maintenance? A: This thermostat does not require specific maintenance beyond ensuring it is functioning correctly and inspecting it during regular engine checks.