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Glm Thermostat Kit For Mercruiser 2.5L 120 Hp, 3.0L 140 Hp Gm 4 Cylinder & Gm Inline 6 165 Hp, 140 Degree, Replaces 59078T3 18-3
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Vendor: Great Lakes Memories
Type: Thermostats
Sku: WBCARB08LZSCDHT
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.
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Glm Thermostat Kit For Mercruiser 2.5L 120 Hp, 3.0L 140 Hp Gm 4 Cylinder & Gm Inline 6 165 Hp, 140 Degree, Replaces 59078T3 18-3
$53.77
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 GLM Thermostat Kit? A: The kit includes a one hundred forty degree thermostat and a gasket. These components are essential for ensuring proper engine cooling in Mercruiser applications.
- Q: What is the temperature rating of the thermostat? A: The thermostat has a temperature rating of one hundred forty degrees Fahrenheit. This specification is crucial for maintaining optimal engine performance.
- Q: What part numbers does this thermostat replace? A: This thermostat replaces Merc part numbers five thousand nine hundred seventy-eight, five thousand nine hundred seventy-eight T3, and five thousand nine hundred seventy-eight Q3. It also replaces Sierra part number eighteen thousand three hundred sixty-five.
- Q: How do I install the GLM thermostat? A: To install the thermostat, remove the old unit and gasket, then place the new thermostat and gasket in the correct orientation. Securely fasten it according to manufacturer specifications.
- Q: Is this thermostat suitable for my Mercruiser engine? A: Yes, this thermostat is suitable for several Mercruiser engines including the one hundred twenty horsepower two point five liter and the one hundred forty horsepower three liter models. Refer to the product description for specific serial numbers.
- Q: Does the kit fit closed cooling systems? A: No, this thermostat kit is not designed for closed cooling systems. It is intended for open cooling applications in specific Mercruiser models.
- Q: How do I care for the thermostat after installation? A: After installation, regularly check for leaks and monitor engine temperature. Avoid using harsh chemicals during any cleaning around the thermostat area.
- Q: What should I do if the thermostat fails? A: If the thermostat fails, it should be replaced as soon as possible. Ensure that the engine is cooled down before attempting to replace the thermostat.
- Q: Is this thermostat compatible with older Mercruiser models? A: Yes, this thermostat is compatible with older Mercruiser models from nineteen sixty-eight to nineteen ninety-four. Check the serial numbers for specific fit.
- Q: What are the dimensions of the thermostat? A: The thermostat itself does not have specific dimensions listed, but it fits standard Mercruiser applications. Installation requires proper alignment with the engine mount.
- Q: How should I store the thermostat kit before use? A: Store the thermostat kit in a cool, dry place away from direct sunlight. Ensure that the packaging remains intact to prevent any damage.
- Q: Can I return the thermostat kit if it doesn't fit? A: Yes, you can return the thermostat kit if it does not fit your application. Ensure that it is in its original condition and packaging for a full refund.
- Q: What maintenance does the thermostat require? A: The thermostat requires minimal maintenance, but regular engine checks are recommended to ensure it is functioning properly. Replace if overheating occurs.
- Q: Is professional installation recommended for this thermostat? A: Yes, professional installation is recommended if you are unfamiliar with engine components. This ensures proper installation and function.
- Q: What is the warranty on the GLM thermostat kit? A: The warranty details for the GLM thermostat kit can vary by retailer, but it typically comes with a standard manufacturer's warranty. Check with the seller for specifics.