



Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.
๐ฆ Illuminate hidden leaks before they become costly headaches!
Interdynamics 374CS Certified A/C Pro Oil and Fuel Systems UV Dye is a professional-grade, one-application UV dye designed to detect leaks in engine oil, transmissions, power steering, and fuel systems. Compatible with all petroleum-based lubricants, it helps pinpoint leak sources quickly and accurately under black light, saving time and repair costs.






| ASIN | B002M4G24U |
| Best Sellers Rank | #130,786 in Car & Motorbike ( See Top 100 in Car & Motorbike ) #214 in Fuel System Tools |
| Brand | A/C Pro |
| Brand Name | A/C Pro |
| Country of Origin | USA |
| Customer Reviews | 4.5 out of 5 stars 2,430 Reviews |
| Global Trade Identification Number | 00047876013741 |
| Included Components | QUEST Auto A/C Recharge |
| Item Type Name | Auto A/C Recharge |
| Item Weight | 45 g |
| Manufacturer | QUEST |
| Material | Fluorescent Dye in Liquid/Gel Base |
| Material Type | Fluorescent Dye in Liquid/Gel Base |
| Measuring Range | Broad (Universal) |
| Model Number | 374CS |
| Mounting Type | Flange Mount |
| Output Type | Digital |
| Part Number | 374CS |
| Smart Home Compatibility | Not Smart Home Compatible |
| Specific Uses For Product | Automotive leak detection |
| Style | Compatible |
| Style Name | Compatible |
| UPC | 047876013741 |
| Unit Count | 1.0 Ounce |
| Upper Temperature Rating | 250 Degrees Fahrenheit |
A**Q
Useless
Does not identify leak
D**M
An absolute time saver.
If you are chasing a "phantom" leak that seems to be dripping from the sump but you suspect is originating elsewhere, this UV dye is an absolute lifesaver. I used it to track down a stubborn leak on my Alfa. From underneath the car, everything pointed toward a sump gasket failure, but the dye revealed a completely different story. Once circulated, the fluorescent trail showed the oil was actually weeping from a seal much higher up the block and simply trailing down the casting.
W**R
Works Perfect to Locate a Leak.
Worked as expected. Wasnโt like NEON but worked great. Found the leak right away.
M**Z
Easy to find leak
Works like it should. Used this to find where a coolant leak was at. Easy to see. Make sure you have a black light. I forgot to take pictures but worth the price to help diagnose where a leak is at.
H**T
Works well. Finds oil leaks easily.
Used it for thr first time yesterday and discovered the source of my oil leak quickly . You will need a black light but they are cheap. Recommended .
Trustpilot
1 week ago
3 weeks ago