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Item #:
46819811
Thermostat Kit 3917324 Compatible with Cummins 3.9L, 5.9L B Series | Engine 4B3.9 4BT3.9 4BTA3.9 6B5.9 6BT5.9 6BTA5.9
Item #:
46819811
LAK 1053158
Price Details
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Imported from USA store
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Only 13 items left in stock.
Order now and get it around Wednesday, August 26
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YIHETOP thermostat kit compatible with Cummins 3.9L, 5.9L B Series Engine
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What Stands Out
Wide Compatibility
Designed for Cummins B Series engines, this thermostat kit ensures a perfect fit for models 4B3.9, 5.9L, 6B5.9, and more, making it a versatile choice for various heavy-duty applications.
Enhanced Durability
Crafted with high-quality materials, this thermostat kit offers exceptional reliability and longevity, reducing the need for frequent replacements and ensuring optimal engine performance under demanding conditions.
Optimal Performance
This thermostat kit regulates engine temperature effectively, preventing overheating and improving fuel efficiency, which ultimately enhances the overall performance and lifespan of your Cummins engine.
Product Details
- Includes thermostat 3917324, gasket 3920336, and rubber seal 3923331
- Compatible with Cummins 3.9L, 5.9L B Series engines
- Engine compatibility: 4B3.9, 4BT3.9, 4BTA3.9, 6B5.9, 6BT5.9, 6BTA5.9
Product Technical Details
| Manufacturer | YIHETOP |
| Brand | YIHETOP |
| Item Weight | 0.035 ounces |
| Package Dimensions | 5.71 x 5.24 x 2.52 inches |
| Manufacturer Part Number | 3917324 |
Who Should Buy?
-
Diesel Mechanics
Ideal for mechanics working on Cummins B Series engines, offering reliable performance and easy installation.
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Heavy Equipment Operators
Great for operators needing efficient temperature control in machinery powered by Cummins engines.
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Fleet Maintenance Teams
Perfect for maintenance teams managing multiple Cummins vehicles, ensuring readiness and reduced downtime.
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Non-Cummins Engines
Not suitable for vehicles with engines other than Cummins B Series, leading to potential compatibility issues.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What engines are compatible with the Thermostat Kit 3917324?
Answer: The Thermostat Kit 3917324 is compatible with Cummins 3.9L and 5.9L B Series Engines, specifically models such as 4B3.9, 4BT3.9, 4BTA3.9, 6B5.9, 6BT5.9, and 6BTA5.9. This wide compatibility makes it an excellent choice for various applications, from industrial machinery to light-duty trucks. When selecting a replacement thermostat, verifying that your engine model aligns with these specifications is essential for optimal performance. -
Question:
How do I know if I need to replace my thermostat?
Answer: Signs that you may need to replace your thermostat include overheating engine temperatures or insufficient heating in colder conditions. If your engine temperatures fluctuate or if the temperature gauge remains stuck on low, these can be indications of a malfunctioning thermostat. Regular monitoring can prevent engine damage and ensure that your vehicle operates efficiently under varying conditions. -
Question:
Can I install the Thermostat Kit 3917324 myself?
Answer: Yes, the installation of the Thermostat Kit 3917324 can be a DIY project if you have basic mechanical skills. Start by ensuring the engine is cool, remove the old thermostat, and install the new one according to the manufacturer's specifications. Basic tools like wrenches and screwdrivers are usually required. However, if you're uncertain, consulting a professional mechanic can ensure proper installation and function. -
Question:
What materials is the Thermostat Kit 3917324 made from?
Answer: The Thermostat Kit 3917324 is typically constructed from durable materials engineered to withstand high temperatures and pressures, ensuring it performs effectively in demanding environments. The internal components are crafted from heat-resistant plastics, while the housing is often made from robust metals to prevent warping. This construction helps enhance the lifespan and reliability of the thermostat in various applications. -
Question:
What are the signs of a faulty thermostat?
Answer: Common signs of a faulty thermostat include engine overheating, irregular temperature gauge readings, or coolant leaks. You may also notice poor fuel efficiency or engine performance issues. Addressing these symptoms promptly can prevent more extensive engine damage. Keeping an eye on the temperature readings while driving can help detect issues before they escalate. -
Question:
Is it necessary to replace the thermostat when servicing the engine?
Answer: While not always necessary, replacing the thermostat during engine servicing is often recommended. This is especially true if the vehicle is older or has exhibited any signs of temperature regulation issues. Replacing the thermostat as part of regular maintenance can help avoid potential future problems and ensure the engine runs at its optimal temperature. -
Question:
How does the thermostat affect engine performance?
Answer: The thermostat plays a critical role in regulating engine temperature, which is vital for optimal performance. If the thermostat is stuck open, the engine may run too cold, leading to incomplete combustion and reduced efficiency. Conversely, if it’s stuck closed, temperatures can spike, causing overheating. Maintaining an optimal temperature ensures fuel efficiency and engine longevity. -
Question:
Where can I buy the Thermostat Kit 3917324 in Laos?
Answer: You can purchase the Thermostat Kit 3917324 from Ubuy, which offers a wide selection of automotive parts and accessories. Their platform simplifies the shopping experience, providing product details and customer reviews to help ensure that you make an informed decision. Simply visit their website, enter the product name, and explore the available options tailored for your needs. -
Question:
How can I maintain my thermostat for better performance?
Answer: To ensure your thermostat maintains optimal performance, regular engine inspections and coolant checks are beneficial. Flushing the cooling system according to the manufacturer's recommendations can help prevent sediment buildup that may hinder thermostat function. Additionally, watching for signs of leaks or overheating can help you address potential issues before they affect performance. -
Question:
What tools do I need to replace the Thermostat Kit?
Answer: Generally, you will need a set of basic hand tools to replace the Thermostat Kit 3917324, including wrenches, screwdrivers, and possibly a gasket scraper for removing old gasket materials. Safety goggles and gloves are also recommended for protection during the process. Having a repair manual specific to your engine model can provide valuable guidance during installation.
YIHETOP Thermostats Editorial Review
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Customer Reviews & Ratings
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Pros
- Excellent temperature regulation
- Easy installation process
- Durable build quality
- Compatible with multiple engines
- Improves engine efficiency
Cons
- Occasional sensor inaccuracies
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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LAK 1053158
Order now and get it around Wednesday, August 26
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 13 items left in stock.
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Features & Benefits
- Includes thermostat 3917324, gasket 3920336, and rubber seal 3923331
- Designed for Cummins 3.9L, 5.9L B Series Engine models: 4B3.9, 4BT3.9, 4BTA3.9, 6B5.9, 6BT5.9, 6BTA5.9
- Premium quality materials ensure reliability and durability
- Easy to install and replace
- Maintains consistent engine temperature for optimal performance
- Guaranteed compatibility and satisfaction
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