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Item #:
3341939
Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye - 1 oz.
Item #:
3341939
GHS 342
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Fluorescent leak detection dye for traditional coolant systems. Quickly pinpoints the exact location of coolant fluid leaks.
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What Stands Out
High Visibility
This fluorescent coolant tracer dye enhances leak detection by glowing under UV light, making it easier to identify leaks in your cooling system quickly and efficiently.
OEM Quality
Genuine GM product ensures top-notch quality and compatibility with GM vehicles, providing peace of mind for vehicle owners looking for reliable solutions.
Easy Application
The 1 oz size is convenient and easy to use, allowing for precise dosing in coolant systems, reducing waste and ensuring optimal performance.
Product Details
- Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye - 1 oz
- Fluorescent leak detection dye for traditional coolant systems
- Quickly pinpoints exact location of coolant fluid leaks
- Safe and easy method that eliminates guesswork
- Also used to isolate power steering system leaks
- Formulated for automotive use
Who Should Buy?
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Automotive Technicians
Ideal for professionals diagnosing coolant system leaks in vehicles, ensuring precise detection of hidden issues.
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Car Enthusiasts
Great for hobbyists who maintain or overhaul vehicles, helping to identify leak sources quickly and efficiently.
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Fleet Maintenance
Useful for fleet operators needing regular coolant checks, maximizing vehicle reliability and minimizing downtime.
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Casual Drivers
Not necessary for everyday drivers who do not frequently check or maintain their coolant systems.
Product Description
Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye - 1 oz.
Have any Query? Chat with us
Customer Questions & Answers
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Question:
What is the Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye used for?
Answer: The Genuine GM Fluid 12378563 is designed to help detect leaks in your vehicle's cooling system. This fluorescent dye is added to the coolant and illuminates under UV light, making it easy to spot any leaks or issues. This is especially useful in older vehicles or those that have experienced recent overheating problems. By identifying leaks early, you can prevent more severe damage to your engine and ensure optimal performance. -
Question:
How do I use the Fluorescent Coolant System Tracer Dye?
Answer: To use this tracer dye, start by adding the entire contents of the 1 oz bottle to your vehicle's cooling system. Disturb the system to allow the dye to circulate through the coolant. After a brief period, use a UV light to inspect the cooling system for any visible leaks where the dye will fluoresce. This process is straightforward, making it a practical solution for DIY mechanics looking to maintain their vehicles efficiently. -
Question:
Is the GM Fluorescent Coolant System Tracer Dye compatible with all vehicles?
Answer: This product is specifically formulated for use in GM vehicles but can also be effective in other makes/models. However, it's crucial to check your vehicle's coolant specifications to ensure compatibility. Many enthusiasts find this dye beneficial in identifying leaks in both older and modern vehicles, making it a versatile choice for anyone aiming to maintain their car's coolant system. -
Question:
What are the benefits of using a fluorescent tracer dye?
Answer: The primary benefit of using a fluorescent tracer dye, like the GM Fluid 12378563, is its ability to pinpoint leaks that may not be visible to the naked eye. This avoids costly repairs by helping you find issues early. Additionally, its fluorescent properties illuminate under UV light, significantly simplifying the leak detection process. This makes it a great choice for mechanics and car enthusiasts looking to maintain optimal cooling system performance. -
Question:
Can I use this dye in conjunction with other coolant additives?
Answer: It is generally recommended to avoid mixing different types of coolant additives to prevent chemical reactions. However, the GM Fluid 12378563 is engineered to work well in most cooling systems. If you are considering using other additives, consult your vehicle's manual or a professional mechanic to ensure compatibility. This helps safeguard your engine and maintains the integrity of your cooling system. -
Question:
What type of UV light should I use with this tracer dye?
Answer: A UV flashlight or a blacklight that emits a wavelength between 320 nm and 400 nm is ideal for detecting the fluorescent dye. These types of lights are commonly available and are effective in illuminating the areas where the dye has leaked. Using the right UV light not only enhances visibility but also ensures that you can efficiently locate leaks without missing any critical areas. -
Question:
How long does the tracer dye last in the cooling system?
Answer: Once added to the cooling system, the GM Fluid 12378563 tracer dye will remain effective for an extended duration, typically as long as the coolant itself, unless there is a leak or coolant flush. This longevity allows for ongoing monitoring of your cooling system’s integrity. Regular inspections with a UV light can be a proactive approach to maintaining your vehicle, ensuring it runs smoothly for longer periods. -
Question:
Is this product safe to use?
Answer: Yes, the Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye is formulated to be safe for use within automotive cooling systems. However, like any chemical product, it is crucial to handle it according to the manufacturer’s instructions. Wearing gloves and protective eyewear during application is advisable. Proper safety measures ensure that you are protected while effectively maintaining your vehicle’s performance. -
Question:
Where can I buy Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye - 1 oz?
Answer: You can purchase the Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye - 1 oz on Ubuy. Ubuy offers a reliable way to source authentic automotive products, ensuring you receive genuine parts for your vehicle maintenance needs. -
Question:
What should I do if I find a leak using this dye?
Answer: If you identify a leak using the GM Fluid 12378563 dye, it’s essential to address it immediately to avoid further damage to your engine. Depending on the severity of the leak, you may need to consult a professional mechanic to assess and repair the issue or consider DIY repair methods for minor leaks. Taking immediate action ensures the longevity of your cooling system and overall vehicle health.
General Motors Air Conditioning Line Repair Tools Editorial Review
The Genuine GM Fluid 12378563 Fluorescent Coolant System Tracer Dye is a great product for detecting leaks in GM vehicles. It is easy to use and works well with both dex-cool and standard anti-freeze. Simply add the entire bottle to the radiator or coolant tank, run the engine like normal, and periodically check for fluid leaks. The dye is highly visible, even without a UV or black light. It is recommended to leave the dye in the system to detect future leaks. Overall, this product takes the guesswork out of finding coolant leaks and is a cost-effective solution.
Customer Reviews & Ratings
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Pros
- Easy to use
- Works with both dex-cool and standard anti-freeze
- Highly visible dye, even without a UV or black light
- Helps detect and locate coolant leaks
- Cost-effective
Cons
- Some users had difficulty seeing the dye with a UV light
Platform Trust & Buyer Confidence
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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
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Chitra
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“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
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“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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“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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23 July 2026 · via Trustpilot
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GHS 342
Order now and get it around Sunday, August 16
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Features & Benefits
- Safe and easy method that eliminates guesswork
- Formulated for automotive use
- May also be used to isolate power steering system leaks
- Suitable for use with all vehicles
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