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 thermostat housings are constructed with quality in mind using the highest grade materials for exceptional life and performance. Housing is made of stainless steel and constructed to meet or exceed OEM specifications for long life even in the harshest marine environment.
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 engines is the Sierra International 18-1989 thermostat housing compatible with?A: The Sierra International 18-1989 thermostat housing is designed to fit MCM/MIE GM V-8 engines, specifically the 454 and 502 cubic inch (cid) models.
Q: What material is the Sierra thermostat housing made from?A: The Sierra thermostat housing is constructed from high-quality stainless steel, ensuring durability and resistance to corrosion in harsh marine environments.
Q: How does the Sierra thermostat housing compare to OEM parts?A: The Sierra thermostat housing is constructed to meet or exceed OEM specifications, providing long-lasting performance and reliability for your marine engine.
Q: What is the warranty coverage for Sierra parts?A: All Sierra parts, including the thermostat housing, qualify for and are covered under Sierra's industry-leading customer satisfaction warranty, ensuring peace of mind with your purchase.
Q: How should I care for and maintain the stainless steel thermostat housing?A: To maintain the stainless steel thermostat housing, regularly inspect it for signs of corrosion or damage, and clean it with a mild detergent and water to preserve its appearance and functionality.
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