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Sierramarine Sierra 18-3621 Thermostat Kit
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Vendor: Sierramarine
Type: Thermostats
Sku: WBCARB004DWZWAE
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
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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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Sierramarine Sierra 18-3621 Thermostat Kit
$37.33
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 included in the Sierra 18-3621 Thermostat Kit? A: The kit includes one eighteen dash three five five eight thermostat, one eighteen dash zero one six four thermostat housing gasket, and one Mercruiser stern drive twenty-five dash eight zero five zero six three O-ring.
- Q: What is the temperature rating of the Sierra 18-3621 Thermostat? A: The temperature rating is one hundred sixty degrees Fahrenheit, which is approximately seventy-one degrees Celsius.
- Q: What are the dimensions of the Sierra 18-3621 Thermostat Kit? A: The kit's dimensions are zero point three nine inches in length, width, and height.
- Q: How do I install the Sierra 18-3621 Thermostat Kit? A: To install, first ensure the engine is cool. Remove the old thermostat and gasket, then place the new thermostat and gasket into position before reassembling.
- Q: Is the Sierra 18-3621 Thermostat Kit suitable for all marine engines? A: No, it is specifically designed for use in marine stern drive applications.
- Q: Can I use the Sierra 18-3621 Thermostat in freshwater applications? A: Yes, it can be used in freshwater marine applications as long as it fits the specified engine type.
- Q: How do I keep the Sierra 18-3621 Thermostat in good condition? A: Regularly check for leaks and ensure the engine's cooling system is functioning properly to maintain the thermostat's lifespan.
- Q: Are there any specific storage requirements for the Sierra 18-3621 Thermostat Kit? A: Store in a cool, dry place away from direct sunlight to prevent any degradation of the components.
- Q: Is this thermostat kit safe for use in high-temperature environments? A: Yes, it can operate at temperatures up to one hundred sixty degrees Fahrenheit.
- Q: How does the Sierra 18-3621 Thermostat compare to other brands? A: The Sierra thermostat is designed to meet or exceed the specifications of the original equipment parts it replaces, ensuring reliability.
- Q: Is this thermostat compatible with older Mercruiser models? A: Yes, it is compatible with various Mercruiser models, but always check your engine specifications for confirmation.
- Q: What if the Sierra 18-3621 Thermostat is damaged upon arrival? A: Contact customer support immediately for assistance with a return or replacement if your thermostat arrives damaged.
- Q: How can I tell if my thermostat is malfunctioning? A: Signs of malfunction include engine overheating or the engine not reaching optimal operating temperature.
- Q: Is there a warranty for the Sierra 18-3621 Thermostat Kit? A: Yes, Sierra products generally come with a warranty against defects in materials and workmanship; check the specific warranty details.
- Q: Can I return the Sierra 18-3621 Thermostat Kit if it doesn't fit? A: Yes, you can typically return it if it doesn't fit, but it's best to check the return policy of the retailer.